Rubber Articles | Timco Rubber

Why Timco Starts Every Gasket Inquiry with a Conversation

Thu, 19 Mar 2026 08:00:00 Z

When customers are seeking solutions for custom gaskets or any custom rubber or plastic component, many suppliers move straight to the quote. They look at a drawing and send back a price. This approach may seem efficient, but it often skips the most important part of the process: understanding the specific needs of your parts and processes.

A gasket may look straightforward on paper, but success depends on more than just shape and dimensions. When different factors aren’t discussed early, the implementation or launch of a new part is often set up for delays and avoidable frustrations.

That need for information is why Timco starts every inquiry with a discovery session. Quotes are not simple transactions; they are opportunities to create a proper foundation for a long-term supply relationship. In this post, we’ll break down the different reasons why this initial conversation helps customers invest in the right part solutions for their businesses.

7 Reasons Timco Starts with a Discovery Session

Review your drawing and address the specifications of your unique application

The exact requirements of your parts are rarely limited to a basic drawing. The details provided in a quote can paint an incomplete picture for your application. A review session allows us to gather all the information needed to supply customers with parts that meet their exact specifications, including specific details on:

Material designations
Part dimensions
Application requirements
Manufacturing methods
Adhesive selection

All these factors impact both immediate part production and long-term performance, and missing some early details leads to potential risks. By taking the time to review your drawing and uncover what you truly need, Timco can provide more thorough, cost-effective recommendations based on our expertise and experience in the custom rubber and plastic space.

Clarify tooling and timelines

Whether you own the tooling for your parts or need new tooling, it’s important to discuss your options. Tooling often requires modifications, and those details directly impact production timelines and expectations whether it involves transferring these tools or mapping out a plan for new tooling.

Our goal is to address these needs right away instead of waiting for those issues to surface later. We work with you to understand the current state of tooling, sample requirements, approval steps, and production goals to provide a practical path forward and an honest breakdown of expectations.

Identify specific pain points to find the best sourcing strategy

There is no simple answer to your ideal sourcing solution. Without discovery, a supplier may direct you toward the easiest path for them instead of one that best fits your priorities, such as:

Required capabilities that dictate available sourcing options, such as a specific manufacturing method
Ideal lead times that require planning to navigate logistics complexity and feasible sourcing solutions
Inventory requirements to identify flexible options and routes that limit potential delays
Part costs that factor in labor, production, minimum order quantities, and any other factors that affect total landed costs for projects

Timco uses this first discovery session to have a conversation about these different factors so that we can identify different options based on your priorities. The information we gather during this conversation allows us to recommend sourcing approaches based on your exact needs, including domestic, offshore, or hybrid options where appropriate.

Align with your unique systems and processes

A custom gasket extends beyond design, manufacturing, and shipping. Some suppliers resist process changes and force you to adapt to how they do business.

At Timco, we don’t require you to overhaul your day-to-day operations and processes. We use our initial conversation to determine the differences between our processes and embrace a solution that works for everyone. That collaboration includes taking the steps to:

Adapt to your ordering systems
Use your online portals
Undergo training for your preferred tools and systems
Integrate our processes into your operational efforts to align efforts

Define communication and support

Many supplier problems are not technical at all. They are communication problems. A lack of proactive communication can turn manageable issues into larger disruptions, which is why Timco aims to set clear expectations during an initial conversation.

We aim to address practical communication questions that provide a collaborative approach instead of a transactional one. This process includes establishing the following details:

Contacts for support, including a dedicated account representative
Escalation plans for emergencies and other issues
Expected response times and forms of communication
Meeting cadences
Processes for proactive support and problem solving

Learn from past gasket challenges

Sometimes the most valuable discovery question is also the simplest: what has not worked before? Skipping this question runs the risk of repeating avoidable mistakes or missing chances to make improvements.

Timco’s discovery-first approach creates room for those conversations early. For example, were there specific issues that led you to switch gasket suppliers? Whether it’s inconsistent quality or a change in capabilities, discussing your specific frustrations and challenges allows us to identify specific recommendations and define success moving forward.

Establish transparent pricing

Price always matters, but price without context can be misleading. Accurate quoting depends on having the right information, and having an open, honest conversation allows for a more stable partnership.

Timco’s discovery process helps make pricing more honest and useful. Instead of treating the quote as a standalone number, it becomes part of a broader solution that accounts for the actual needs of the application, the supply plan, and the customer’s operating reality.

The Best Custom Gasket Solutions Start with Better Questions

The right supplier does not just fulfill orders. They help customers avoid problems and add value before they start.

By starting every inquiry with a conversation, Timco aims to improve alignment and reduce risk by focusing on real-world needs. This added understanding enables a better foundation for long-term success.

Ready to see the difference between a reactive supplier and a partner who works with your business? Give us a call at 800-969-6242 or contact us online to get a quick, tailored quote for your applications.

Global vs Domestic Sourcing for Custom Rubber and Plastic Parts: A Practical Guide

Mon, 22 Dec 2025 08:00:00 Z

Every custom rubber and plastic part is an investment in your product’s performance and your company’s reputation. Deciding where your parts are made plays a major role in maintaining a reliable supply chain.

When choosing between domestic and offshore international manufacturers, the goal isn’t to “pick a side.” Your target is to build a supply plan that fits your needs and gives you options when conditions change. Below, we break down the different factors that affect which option is best for your parts.

Key Criteria for Global vs. Domestic Part Sourcing

Part Costs

It’s no secret that cost is often the top consideration when comparing sourcing options. However, determining the most cost-effective part solution is rarely simple. There are several factors that impact the overall cost of your custom parts:

Labor and Production Costs: Overseas manufacturers, particularly in Southeast Asia, often have significantly lower labor wages and operating costs than U.S. producers. However, it’s important to vet each manufacturer for quality to reduce part issues regardless of location.
Secondary Costs: While offshore unit prices can be intriguing, those numbers can be misleading. Offshore sourcing includes other expenses that chip away at the initial cost savings from overseas labor, such as international shipping, customs duties, import tariffs, brokers’ fees, and insurance.
Minimum Order Quantities (MOQs): Both global and domestic manufacturers can set high MOQs, with overseas companies often requiring high volumes. If your demand doesn’t meet those volumes, you might still be forced to purchase in bulk to hit their price break.

The Bottom Line: Examine the total landed cost of your parts, not the per-unit price. Domestic sourcing will almost always carry a higher sticker price due to higher wages and regulations, but it can avoid many add-on costs and costly disruptions. Try and account for the complete picture to determine which price points are a better fit for your projects.

Lead Time

How long it takes to get your parts, and the logistics effort required, can be just as critical as the initial part costs. AS they say, time is money, and lengthy supply lines can introduce unwanted risks and other challenges. Here’s how offshore vs. local sourcing stack up on lead times and supply chain logistics:

Production & Shipping Times: The farther the distance, the longer the lead times. Offshore manufacturers can have lead times of 15-20 weeks, compared to 4-8 weeks for some domestic sources.
Logistics Complexity and Risk of Delays: Global supply chains are much more complex and have many more potential failure points. Parts need to travel long distances, pass through ports, and require other handoffs that can be delayed by everything from minor issues to major events like the Suez Canal blockage.
Inventory Pipeline and Safety Stock: Long transit times can lead to more inventory stuck on a boat, sitting in customs, or somewhere else that isn’t immediately accessible. To avoid running out, companies typically keep higher safety stock or have domestic sources ready for short-term needs.

The Bottom Line: Offshore sourcing inherently means longer lead times and more complex logistics, which can be managed with careful planning. Domestic sourcing offers quicker, simpler lead times due to distance and fewer shipping hurdles. Many manufacturers strike a balance by using domestic suppliers for fast-turn or backup supply, even if their primary source is overseas.

Capabilities and Flexibility

Beyond cost and time, there’s a more nuanced but crucial factor in sourcing custom parts: supplier flexibility and support. The right sourcing solution often comes down to which options can address your specific needs, whether that’s a domestic solution or an international resource. Those factors include:

Manufacturing Capabilities: Specific manufacturing needs may steer you toward a specific option. For example, global sourcing can give you access to capabilities and expertise that might be scarce domestically.
Inventory Flexibility: Local sources can offer you more flexibility for managing inventory, such as warehousing and just-in-time delivery options that aren’t quite as easy to manage with international parts.
Communication and Support: Time zone differences and language barriers with overseas manufacturers can add communications challenges, especially when dealing with urgent issues.

The Bottom Line: Quality and manufacturing capabilities are not a binary global vs. domestic question. Instead of basing your choice purely on location, find a selection of sourcing solutions that meet all your requirements and then navigate the differences between international and domestic from there.

How Timco Crafts a Sourcing Strategy That Fits You

Deciding between global and domestic sourcing for custom parts is not a one-size-fits-all proposition. Both offshore and domestic sourcing solutions offer distinct advantages and disadvantages that can be viable depending on your specific needs. The biggest challenge is often finding the right custom parts supplier to uncover the best sourcing solution for your business.

At Timco, we don’t just sell custom parts. We work as an extension of your team to solve sourcing challenges and improve your supply chain efficiency. We don’t shoehorn you into a specific solution. Instead, we offer a variety of features that help you invest in the best, most cost-effective sourcing solution available:

A global network of partners with comprehensive capabilities both inside the U.S. and out.
Tailored sourcing recommendations that give you multiple options, whether it’s an offshore, domestic, or hybrid approach.
Proactive recommendations based on changing needs, including dual sources, material alternatives, or some other creative supply chain possibility.
Consistent quality standards across all locations, regardless of location.
Ongoing flexibility allows you to shift production as needed.

Ready to solve your sourcing challenges for custom rubber and plastic parts? Timco partners with businesses ranging from Fortune 500 companies to small enterprises and can help your organization invest the quality parts and service you deserve. Give us a call at 800-969-6242 or contact us online to get a quick, tailored quote for your applications.

Are sourcing challenges disrupting your business? Download our Guide to Overcoming 6 Critical Challenges.

Case Study: Localized Reinforced Hose Supply for a Leading Tow Motor OEM

Mon, 10 Nov 2025 08:00:00 Z

Companies need more than just parts to succeed; they need tailored solutions that address both their applications and their overall supply chain. When a North American tow motor OEM wanted to improve its reinforced hose program, they turned to Timco for help.

The Challenge: Fit, Function, and Flexibility for Reinforced Hoses

The number and variety of specialty hoses, both reinforced and non-reinforced, varies widely between tow motor manufacturers. Often, there are several different hose sizes and configurations which can be used in several applications. These applications include, but are not limited to:

Conduits for hydraulic fluid
Wire protectors
Ducting for air cooling and ventilation purposes.

The total number and variety of these critical components make it especially challenging for any business to effectively manage the supply chain, which supports their unique needs for reinforced and non-reinforced hoses.

Through a consistent year over year track record of quality and reliability, Timco established itself as valuable partner and resource to an existing OE tow motor client. The ongoing engagement between Timco and the client helped uncover a solution to a supply issue for custom reinforced hoses. Specifically, the client was in need of:

Localization and reliability: The OEM wanted to find a closer source for their reinforced hoses that provided predictable regional supply, responsive communication, and inventory options that matched production cadence.
Technical support: Even good drawings can meet real-world friction at install, making a collaborative supplier that can assist with troubleshooting more valuable.
Packaging flexibility: The OEM had specific packaging requirements and wanted to find a supplier that could provide more flexible solutions than a standard corrugated pack-out to help them offset their costs and streamline internal processes.

Timco’s Approach: Tailored Solutions Meets Practical Sourcing

At Timco, our goal is to partner with businesses to help them find and invest in the right solutions for their parts. Timco takes a collaborative approach to address each customer’s needs, which includes the following steps for this customer.

Technical Project Review

Timco started the process by reviewing the drawings and technical specifications of the reinforced hose to identify issues and opportunities. Parts rarely take a straight path from initial design to finished products, and it’s very common for issues with fit, form, function, and material to pop up without some troubleshooting.

We worked closely with the customer to review all their specifications and make necessary changes that modify their design without starting from scratch. This collaborative technical review allowed Timco to provide detailed recommendations and solutions to improve the OEM’s part in ways that would help streamline manufacturing and assembly while keeping it in line with their budget.

Localized Sourcing Options

Once Timco provided tailored recommendations for the customer’s reinforced hose, it was time to ensure that those parts came from a local source that could cut down on shipping and logistical challenges.

Timco often works with customers to create convenient, efficient sourcing options that accommodate their internal needs and processes. in this particular example, Timco worked collaboratively with the OEM to provide regional shipping solutions that lowered shipping costs, which included an inventory management program that aligned with their needs to streamline their sourcing and manufacturing processes

Value-Added Solutions

At Timco, we don’t settle for “just enough.” We're proud to partner with our customers to offer single-source solutions to support their unique needs for custom rubber and plastic parts and components. In this example, that promise meant collaborating with the customer to help reduce waste through a sustainable packaging program.

Results: Local Reliability and Program Growth

What began as a small, separate project turned into a more comprehensive hose program. Timco’s tailored solutions paid immediate dividends for the OEM’s reinforced hose, motivating the customer to expand Timco’s services into other parts.

Key Outcomes:

2 SKUs grew to 10+ reinforced hose assemblies manufactured via different methods.
Localized supply that lowered costs, reduced logistical hurdles, and improved responsiveness.
Smaller supply chain that relies on a single partner to address multiple capabilities and allows the customer to scale as needed.
Proactive supplier support where Timco actively identifies problems and opportunities to improve the customer’s hose program.
More customized inventory thanks to tailored packaging options, just-in-time delivery, and value-added benefits.

Don’t Settle for the Standard. Address Your Challenges with Timco.

Looking for a custom rubber or plastic part supplier that can localize supply, provide detailed part solutions, and scale with your business?

Timco partners with businesses ranging from Fortune 500 companies to small enterprises to supply them with the quality parts and service they deserve. Give us a call at 800-969-6242 or contact us online to get a quick, tailored quote for your applications.

EPDM vs. Butyl: Material Comparison

Wed, 19 Feb 2025 08:00:00 Z

Choosing the right material for your parts can be tricky, especially when some options share a lot of the same qualities. Both EPDM and butyl rubber are known for being very durable compounds that excel at resisting sunlight, water, and other outdoor conditions. However, there are a few factors that can make either EPDM or butyl a better fit for your application.

Ready to see which material is right for your parts? Let’s break down some key qualities that can affect whether EPDM or butyl is a better fit for your parts.

The Differences Between EPDM and Butyl

EPDM and butyl are both synthetic rubbers. EPDM is made through the polymerization of ethylene, propylene, and certain other alpha-olefin comonomers and quickly gained popularity in the 1960s due to its versatility and cost-effectiveness. Butyl dates back to the 1930s when American researchers polymerized 98% isobutylene and 2% isoprene to create the modern version of this material.

While both polymers are effective in similar environments, there are a few specific characteristics that can make one more effective than the other. These performance criteria include:

Permeability
Compression set
Temperature ranges

Permeability

EPDM is no slouch with very low water permeability, but butyl excels in this area. Butyl is completely airtight, preventing even gases from passing through it. That is a quality unique to butyl when it comes to rubber materials, which helps separate it from EPDM and other compounds if permeability is a notable factor in your decision making.

Compression set

If you need your parts to bounce back to its original shape after being compressed, EPDM is likely a better fit for your parts. EPDM provides good bounce back for door seals and other parts that will undergo sustained compression, whereas butyl is less able to return to its original thickness.

Temperature ranges

EPDM and butyl have similar temperature ranges, but one may be better than the other if your part needs to survive in high or low temperatures. Here are each material’s respective ranges:

EPDM: -60 to 350° F
Butyl: -75 to 250°F

As you can see, EPDM has the edge when it comes to high-end temperatures, while butyl offers a slight advantage for extreme cold.

Invest in Quality EPDM, Butyl, and Other Parts Tailored Around Your Specifications

EPDM and butyl can both be excellent options for businesses in need of rubber parts – but only if they meet all your design requirements. Material selection requires a delicate balancing act of addressing pain points, design needs, and budget that can pose problems without enough expertise.

Need some help finding the right solution for your business? Timco works closely with businesses to provide custom part solutions that address the specifications of your unique application. Give us a call at 800-969-6242 or contact us online to talk about how we can help you get the right parts for your applications.

Best Rubber Materials for Fire Resistance

Tue, 07 Jan 2025 08:00:00 Z

In the high-stakes world of industrial and safety-critical applications, the fire resistance of rubber materials isn't just a technical specification – it's essential for long-term success.

Selecting the right rubber material can mean the difference between containment and catastrophic failure for aerospace, automotive, construction, and many other industries. Let’s break down some of the best rubber and performance plastics that offer superior fire- and flame-resistant properties.

5 Different Fire-Resistant Rubber Materials

Silicone

Silicone is a high-performance rubber that boasts several fire-resistant features. Silicone boasts notably high temperature resistance and flame-retardant qualities that make it more difficult to ignite. It is also non-toxic and releases lower levels of smoke compared to other compounds when it does ignite.

While silicone already features ample fire-resistant characteristics, it can be formulated to meet even stricter requirements. Silicone can become flame retardant with additives, with some products receiving UL94 V-0 certification according to the UL94 (USA) standards for flammability classification.

Neoprene

Neoprene is one of the best rubber options for fire and flame resistance. Neoprene offers better flame retardant and self-extinguishing characteristics than exclusively hydrocarbon-based elastomers and has a fairly high temperature range. It can also be certified to meet the following standards:

ASTM E162 (surface flammability)
SMP800C (toxic gas generation)
ASTM C1166 (flame propagation)

PVC

While technically a thermoplastic, PVC offers several benefits that make it attractive for many parts, including those that require fire prevention properties. PVC, also known as polyvinyl chloride, naturally has high chlorine content that gives it inherent flame-retardant capabilities. These properties make PVC difficult to ignite – and even if it does, it won’t continue to burn without a powerful external flame present.

EPDM

Standard EPDM is highly flammable, but it can be modified to improve its flame-resistance qualities. Additives, such as a flame retardant, can drastically reduce EPDM’s flammability in addition to heat and smoke release. These custom compounds can also meet specific industry performance criteria, such as:

UL94-VO (fire safety regulations)
ASTM E162 (surface flammability)
ASTM C116 (flame propagation)

Viton

Viton is generally regarded as one of the more fire-resistant rubber compounds available. It’s tremendous heat resistance and low burning characteristics make Viton inherently more resistant to flame and combustion caused by high temperatures than other, non-fluorinated hydrocarbon rubbers. These qualities make it ideal for parts like firewall seals and other demanding solutions for applications.

Of course, every material has its limit. If Viton does catch fire, it can release hydrogen fluoride into the air. As such, plan accordingly to ensure that you don’t need a more specialized solution for these extreme scenarios.

Invest in Quality Fire-Resistant Rubber Parts Made to Your Precise Part Needs

Selecting the right fire-resistant rubber material is a nuanced decision that requires careful consideration of environmental conditions, specific application requirements, and potential performance limitations. While each material we've discussed offers unique advantages, the key is to match the material's inherent characteristics with your precise part needs.

Need to invest in part solutions based on your design specifications and budget? Give us a call at 800-969-6242 or contact us online to talk to one of our experts and your application.

Understanding Compression Set: Material Comparison Guide for Custom Parts

Wed, 13 Nov 2024 08:00:00 Z

When you need a part that can bounce back to its original shape after being compressed, some materials are better options than others. A material’s compression set measures just how well a rubber or performance plastic can recover from sustained compression – the worse the set, the more likely that material will be permanently deformed.

This ability to compress when needed is critical for the long-term success of many parts, including seals, gaskets, and other cushioning elements. Let’s break down the compression set for different rubbers and performance plastics, along with other characteristics that may benefit your application.

How is Compression Set Measured?

Compression set is normally measured through standardized tests that simulate realistic conditions that your parts may face. The most common example of this involves taking a part and compressing it to a specified percentage of its original thickness and exposing it to an elevated temperature. That part is then kept like that for a set amount of time before being released and measured.

In general, businesses follow two international standards to define compression set testing – ASTM D395 and ISO 815. These standards help maintain consistency so that it’s easier for people to evaluate specific materials.

In terms of the actual numbers, compression set is calculated as a percentage – the lower the compression set, the better a material will rebound to its original shape. For example, a compression set of 20% means that material will rebound back to 80% of its original thickness. Each percentage is calculated using the following formula.

Compression Set (%) = (Original thickness - final thickness) × 100

The ideal percentage is heavily dependent on your application. Some parts can allow for more give, while other applications need to minimize deformation as much as possible. Compression sets of less than 25% can be adequate for various sealing applications, while some high-performance materials may boast sets of 5% or less.

Which Rubber and Plastic Materials are Best for Compression Set?

One of the challenges of compression is that each material doesn’t have an exact percentage. Different formulations can affect just how much a part can rebound, but you can get a general idea for which materials are better suited for compression than others. Here are how different rubber and performance plastic stack up compare to each other.

Excellent

Natural rubber

Good

EPDM
Silicone
Neoprene
Nitrile
Viton

Fair/Poor

Butyl
TPE
PVC

Invest in Parts That Match Your Compression Requirements

Figuring out the best, most cost-effective solution for your parts isn’t easy, and that’s why we’re here to help. We work with you to provide a wide range of options that address your exact specifications, including identifying materials with ideal compression sets. Give us a call at 800-969-6242 or contact us online to invest in quality custom part solutions that address your design needs.

Rubber Durometer Chart: Hardness Ratings of Different Rubber Materials

Wed, 16 Oct 2024 08:00:00 Z

The hardness of a rubber compound directly affects the performance of that material in several ways, including its overall durability and flexibility. These factors can make a massive difference in the overall success of o-rings, vibration isolators, and many other parts. Let’s break down how durometer measures hardness and the durometer ranges for different rubbers and performance plastics.

Rubber Durometer Ratings

The Shore durometer scale allows experts to measure hardness by using a presser foot to see how much of an indentation is left after applying a set amount of force. Durometer is measured on an overlapping scale with three main categories, with shore A being the most common.

Shore 00 – Very soft to medium hard
Shore A – Soft to hard
Shore D – Medium hard to very hard

The durometer of each rubber is also paired with a number that indicates the overall hardness of the material. The smaller the number, the softer the material within that shore. Each material is available in a range of hardnesses depending on the specific formulation of that compound.

EPDM hardness

Durometer Range: 30-90 Shore A

Other Key Benefits:

Extreme resistance to weathering and physical wear and tear.
Low toxicity and odor levels.

Silicone hardness

Durometer Range: 30-90 Shore A

Other Key Benefits:

Excellent temperature resistance for both high and low temperatures.
Tensile strength can be improved to roughly 1,500 PSA with fillers.

Neoprene hardness

Durometer Range: 30-90 Shore A

Other Key Benefits:

Ideal for environments with intermittent exposure to oil and petroleum.
Excellent resistance to twisting and flexing.

Nitrile hardness

Durometer Range: 20-95 Shore A

Other Key Benefits:

Outstanding resistance to prolonged exposure to petroleum-based, mineral, and vegetable oils.
Resistance to punctures, tears, and abrasion.

Viton hardness

Durometer Range: 40-90 Shore A

Other Key Benefits:

Can operate in very hot and extremely corrosive environments.
Can be formulated to meet strict environmental regulations regarding emissions, spills, and leaks.

Natural rubber hardness

Durometer Range: 40-90 Shore A

Other Key Benefits:

Excellent ability to absorb vibration and reduce noise for even heavy-duty applications.
Superior resistance to part fatigue.

Butyl rubber hardness

Durometer Range: 40-90 Shore A

Other Key Benefits:

Completely airtight and gas impermeable.
Excellent age resistance.

PVC hardness

Durometer Range: 15-70 Shore D

Other Key Benefits:

Able to easily process and blend PVC into both rigid and soft materials.
Extremely lightweight and low maintenance.

Thermoplastic elastomer (TPE) hardness

Durometer Range: 50-80 Shore A

Other Key Benefits:

Offers a soft feel that is appealing to consumers.
Provides both shock absorption and slip reduction.

Invest in Parts That Match Your Hardness Requirements

Hardness is one of many critical requirements that are essential for long-term part success. Timco partners with businesses to provide a wide range of solutions and supply them with parts that meet their exact specifications. Give us a call at 800-969-6242 or contact us online to invest in quality custom part solutions that address your design needs.

Viton vs. Silicone: Material Comparison

Thu, 26 Sep 2024 08:00:00 Z

Choosing the right material for your applications isn’t easy. There are several rubbers and compounds available for manufacturing parts, and each of them have different characteristics that can make them viable or not.

Viton and silicone rubber are two notable compounds that are commonly used for demanding environments. Let’s break down some of the key qualities for these two rubber materials to see which is a better fit for your parts.

The Differences Between Viton and Silicone

Both Viton and silicone are both synthetic rubbers, with silicone dating all the way back to the 1800s. Silicone grew in popularity in the early 20th century as a versatile elastomer used in home appliances, automotive applications, and many other markets.

Viton isn’t quite as recognizable to the average person, but it has a well-earned rotation for being a dependable material for environments that would be too much for other rubbers and plastics. Viton is a specific fluoroelastomer polymer (FKM) invented in the 1950s and was originally intended for use in the aerospace industry. Its impressive durability has made it a popular choice for businesses in need of a high-performance elastomer.

While both materials are effective in the right situations, there are specific times when one is more effective than the other. Some of the key differences between Viton and silicone include:

Temperature ranges
Elongation
Fuel and oil compatibility
Abrasion and tear resistance
Cost

Temperature ranges

While some materials can’t stand the heat, both silicone and Viton are exceptional at surviving hot environments. Viton does have an edge when it comes to extreme heat resistance, with a top-end range of 600 degrees Fahrenheit.

However, silicone does have an edge when it comes to colder environments. Silicone has an excellent low-end range as low as -150 degrees, which is notably lower than Viton and many other materials.

Silicone: -150 to 480° F
Viton: -10 to 600°F

Elongation

Another main difference between these materials lies in how much they can stretch before breaking. Silicone excels at this, with a maximum elongation of 700%. Viton’s max elongation is less than half of silicone, as it can stretch up to three times its original length.

Fuel and oil compatibility

Contact with fuel and oil can quickly break down various rubber and plastic materials. Viton is an exception to this problem. Viton is one of the best materials for oil and petroleum resistance, even in environments with regular exposure. Silicone does offer some minor resistance with less exposure, but it can struggle if oil and fuel are a common concern.

Abrasion and tear resistance

When you need a more physically durable material, Viton is likely a better option. Viton is better at handling abrasion and tearing – no surprise for a material that was originally designed to survive in outer space. Silicone isn’t nearly as capable when it comes to physical duress, so keep the impact of wear and tear in mind if that’s a major factor.

Cost

When materials share a lot of characteristics, your decision often comes down to which one is right for both your parts and your budget. Viton is an incredibly high-performance elastomer, but it also costs more than most rubber and plastic materials due to its ability to perform in extremely difficult environments.

Silicone is also a high-performance material but can be less costly compared to Viton. As a result, it can be a better fit for your parts if Viton or a more expensive material is overqualified for your application. However, that added cost can be well worth the investment if your performance requirements demand it.

Invest in Quality Viton and Silicone Parts That are Right for Your Business

Identifying the right material requires a delicate balancing act to address several pain points, and it isn’t easy to determine which compound is best suited for your performance requirements and budget. Fortunately, a little expertise goes a long way toward deciding which material is right for your applications.

Timco works closely with businesses to provide custom part solutions tailored to their specific needs. We work closely with you to provide part solutions that address the specifications of your unique application. Give us a call at 800-969-6242 or contact us online to have Timco supply your business with the parts you need for your applications.

TPE vs. Nitrile (NBR): Material Comparison

Mon, 09 Sep 2024 08:00:00 Z

There are several types of synthetic rubbers and plastics available, but only the right materials make sense for your parts. The challenge is that it can be difficult to decide which ones are best for your specific requirements.

TPE and nitrile are a pair of performance materials that can be great fits for your parts depending on your performance needs. Let’s break down some of the main differences between TPE and nitrile rubber to see which is a better fit for your parts.

The Differences Between TPE and Nitrile (NBR)

The biggest difference between TPE and nitrile is simple – one is a performance plastic, and the other is a rubber. TPE, also known as thermoplastic elastomers, became commercially available in the 1950s and now comes in a variety of compounds made to combine advantages found in both plastic and rubber materials.

Nitrile, also known as Nitrile Butadiene Rubber (NBR) and Buna-N, is a synthetic rubber made through the polymerization of acrylonitrile (ACN) and butadiene. This polymerized material is formed into sheets and vulcanized to create different formulations based on desired characteristics.

As with most materials, the most important difference between the two comes down to the benefits and advantages of using them. Both TPE and Nitrile are great sealing solutions and can be manufactured in a variety of ways, but different environmental factors and performance requirements can make one material a better fit. These different needs include:

Weathering
Oil resistance
Use for consumer goods
Compression set

Weathering

Some parts fare better outdoors than others, and TPE is one of them. TPE ages extremely well when exposed to the sun and other forms of weathering, making it ideal for parts that will be left outside.

Nitrile doesn’t quite fare as well with direct exposure to UV rays. This particular rubber material is more commonly used for parts that are shielded from the sun, such as automotive parts found under the hood.

Oil resistance

Oil exposure is a major challenge for many materials, which makes nitrile an appealing option. Nitrile is one of the best materials available for any parts that are regularly exposed to oil and petroleum products and can even withstand environments where these substances are extremely concentrated. TPE, like many other materials, is much more prone to breaking down when exposed to oil and petroleum.

Consumer goods

TPE is an excellent choice for consumer goods for several reasons. Parts made with TPE are soft to the touch, which is an attractive option for many parts that people will handle, such as grips on products. TPE is also slip resistant and has low toxic properties, the latter of which is a great fit for applications that require compliance with food or medical regulations.

Compression set

If your parts need to retain their original shape after being compressed, nitrile is typically a better option than TPE. Nitrile is better at rebounding back to its original shape than many other compounds, which can be very important for different seals and other parts.

Uncover Whether TPE, Nitrile, or Another Material is Right for Your Business

While there are some key characteristics that can make TPE and nitrile attractive options for your parts, finding the best choice isn’t always clear. The right material often needs to address several pain points ranging from performance requirements to budget. Fortunately, a little expertise goes a long way toward deciding which material is right for your applications.

Timco works closely with businesses to provide custom part solutions tailored to their specific needs. We partner with you to align our capabilities to your unique needs and offer you the highest value custom component solution for your business. Give us a call at 800-969-6242 or contact us online to have Timco supply your business with the parts you need for your applications.

Best Rubber Materials for Food Safe Applications

Thu, 29 Aug 2024 08:00:00 Z

There are a wide variety of rubber and plastic materials available, but not all of them are made with food safety in mind. The FDA sets strict regulations for any parts used in the food processing industry and any other markets where applications can potentially contaminate consumable goods. In general, FDA compliant materials must be:

Tasteless
Odorless
Resistant to bacteria
Compatible and safe to use with different types of food, beverages, and food compliant chemicals
Able to operate at an appropriate temperatures range for food products
Non-toxic
Non-marking
Non-allergenic

6 Potential FDA-Compliant Rubber Materials

These characteristics immediately eliminate several materials, but there are still several options that can address food safety concerns and support the primary functions of your applications. Let’s break down some common rubber materials (and one performance plastic) that can be ideal fits for food-grade components.

EPDM
Silicone
Neoprene
Nitrile
Viton
TPE

Food-Safe EPDM

EPDM (Ethylene Propylene Diene Monomer) is a versatile rubber for several industries, food production included. EPDM is extremely durable and flexible, both in terms of elasticity and part fabrication. Its combination of performance characteristics makes EPDM a great option both for specialty parts and more general-purpose applications.

Temperature Range: -60 to 350° F
Additional Benefits:
- Excellent weathering capabilities.
- Stability in high and low temperatures.
- Resistance to highly acidic substances and corrosive materials.
- Steam and water resistant.

Food-Safe Silicone

Silicone is well-known for thriving in high-temperature environments, making it a potential option for food processing and other applications that require FDA compliance and heat resistance.

Temperature Range: -150 to 480° F
Additional Benefits:
- Resistance to a wide range of chemicals and solvents.
- Excellent weathering capabilities.
- Certain silicone compounds can withstand long-term, continuous use at around 400° F.
- Flame retardant with additives, with some grades of silicone receiving UL94 V-0 certification.
- Can be made clear or with different colors.

Food-Safe Neoprene

Neoprene is lauded for its oil resistance, which is great for food-grade applications where these parts may be intermittently exposed to oily and greasy substances. That characteristic combined with its physical durability makes neoprene a great option for applications ranging from food production to refrigeration seals.

Temperature Range: -50 to 250° F
Additional Benefits:
- Neoprene’s polymer structure can be modified to create a compound with a wide range of chemical and physical properties.
- Excellent resistance to twisting and flexing.
- Excellent weathering capabilities.
- High tensile strength and low compression set.

Food-Safe Nitrile

Nitrile (NBR) is one of the best rubber materials available when you need seals and other parts that demand oil resistance. Whereas neoprene is great for intermittent oil exposure, nitrile can withstand regular contact with greasy foods and other oily substances.

Temperature Range: -40 to 250° F
Additional Benefits:
- Excellent abrasion.
- Can stretch without losing shape and resist tearing.
- Resistance to water and gas permeability.
- Offers ample resistance to a variety of chemicals.

Food-Safe Viton

Viton, also known as fluoroelastomer, is a high-performance elastomer that can thrive in demanding environments. This material was originally used in the aerospace industry and boasts a combination of temperature and chemical resistance that pairs well for more challenging food-grade applications.

Temperature Range: -10 to 600° F
Additional Benefits:
- Excellent weathering capabilities.
- Good abrasion and tear resistance.
- Does not absorb water.
- Certain grades of Viton can perform in environments as cold as -40° F.

Food-Safe TPE

TPE (thermoplastic elastomers) is a material that can perform like rubber but is processed like plastic. Certain grades of TPE can be manufactured with UL and NSF approved ingredient options, allowing food-grade applications to benefit from this extremely flexible, elastic material.

Temperature Range: -30 to 250° F
Additional Benefits:
- Soft touch product that provides both slip resistance and shock absorption.
- Excellent chemical resistance.
- Excellent weathering capabilities.
- Can be scrapped and recycled.

Find the Right FDA-Approved Rubber and Plastic Materials for Your Parts

Investing in the right part solution can be tricky, which is why it’s good to have some help. Timco partners with businesses to supply businesses with tailored parts solutions based on their design specifications and budget. Give us a call at 800-969-6242 or contact us online to talk to one of our experts about parts for your applications.

Chemical Resistances for Different Rubber Materials

Mon, 15 Jul 2024 08:00:00 Z

The wrong mix of chemicals and rubber materials is a quick path to part failure. There are a wide variety of both chemical substances and rubber compounds, which can make identifying the right material rather difficult. Let’s break down some common rubber materials and which chemicals they’re resistant to (and which ones will cause them to degrade).

EPDM
Viton
Silicone
Nitrile
Neoprene
PVC
TPE
Butyl
Natural Rubber

EPDM Chemical Resistances

EPDM (Ethylene Propylene Diene Monomer) is a versatile rubber well-regarded for its durability, including resistance to several chemical substances.

Chemicals EPDM is Resistant To:

Acids and corrosive materials
Alkalies
Oxygenated solvents
Alcohols
Acetones
Ketones
Esters

Chemicals That Can Degrade EPDM:

Oils (petroleum-based)
Aromatic hydrocarbons (benzene, toluene, etc.)
Chlorinated solvents

Viton Chemical Resistances

Viton (Fluoroelastomer) is a high-performance elastomer built for use in demanding environments. Parts made with Viton are compatible with several different chemicals.

Chemicals Viton is Resistant To:

Acids
Alkalies
Oils (petroleum-based and synthetic)
Fuels
Solvents (aromatic and aliphatic)
Chlorinated solvents

Chemicals That Can Degrade Viton:

Ammonia
Amines
Hot, concentrated caustic solutions

Silicone Chemical Resistances

Silicone is a common rubber material used for high-temperature environments and offers resistance to a wide range of chemicals and solvents.

Chemicals Silicone is Resistant To:

Acids (dilute)
Alkalies
Oxygenated solvents
Alcohols
Ketones
Esters
Oils (petroleum-based and synthetic)

Chemicals That Can Degrade Silicone:

Concentrated acids
Aromatic hydrocarbons (benzene, toluene, etc.)
Chlorinated solvents

Nitrile Chemical Resistances

Nitrile (NBR) is one of the best rubber materials available for superior oil resistance, but there are other chemicals that can pose problems.

Chemicals Nitrile is Resistant To:

Oils (petroleum-based)
Fuels
Greases
Hydraulic fluids
Alcohols
Vegetable oils

Chemicals That Can Degrade Nitrile:

Acids (strong and weak)
Alkalies
Oxygenated solvents
Ketones
Esters
Aromatic hydrocarbons
Chlorinated solvents

Neoprene Chemical Resistances

Like Nitrile, Neoprene is another part commonly used for environments with oil exposure. It can also withstand a variety of other substances, such as methyl and ethyl alcohols.

Chemicals Neoprene is Resistant To:

Acids (dilute)
Alkalies
Oxygenated solvents
Alcohols
Ketones
Esters
Oils (petroleum-based and synthetic)

Chemicals That Can Degrade Neoprene:

Concentrated acids
Aromatic hydrocarbons
Chlorinated solvents

PVC Chemical Resistances

PVC (polyvinyl chloride) is a thermoplastic known for being a strong, lightweight material that can be either rigid or flexible. PVC is also an appealing option for a variety of chemicals, although some more concentrated substances can cause issues.

Chemicals PVC is Resistant To:

Acids (dilute)
Alkalies
Alcohols
Oils (petroleum-based and synthetic)
Aromatic hydrocarbons

Chemicals That Can Degrade PVC:

Concentrated acids
Chlorinated solvents
Ketones
Esters

TPE Chemical Resistances

TPE (thermoplastic elastomers) is a performance rubber that’s processed like plastic. This soft, flexible material offers some chemical resistances, but can struggle with others.

Chemicals TPE is Resistant To:

Acids (dilute)
Alkalies
Alcohols
Solvents

Chemicals That Can Degrade TPE:

Concentrated acids
Aromatic hydrocarbons
Chlorinated solvents
Ketones
Esters
Oils (petroleum-based and synthetic)

Butyl Chemical Resistances

Butyl rubber is an excellent rubber for applications that require shock absorption or gas impermeability. These qualities, along with some notable resistances to chemicals and other environmental challenges make butyl an effective choice for sealing, lining, and mounting.

Chemicals Butyl is Resistant To:

Acids (dilute)
Alkalies
Oxygenated solvents
Alcohols

Chemicals That Can Degrade Butyl:

Concentrated acids
Aromatic hydrocarbons
Chlorinated solvents
Ketones
Esters
Oils (petroleum-based and synthetic)

Natural Rubber Chemical Resistances

Natural rubber is an excellent material for parts that demand resistance to abrasion and regular physical contact. However, natural rubber doesn’t fare as well when exposed to most chemicals.

Chemicals Natural Rubber is Resistant To:

Acids (dilute)
Alcohols

Chemicals That Can Degrade Natural Rubber:

Concentrated acids
Alkalies
Oxygenated solvents
Ketones
Esters
Aromatic hydrocarbons
Chlorinated solvents
Oils (petroleum-based and synthetic)

Find the Right Chemical-Resistant Rubber for Your Parts

While the information above can provide general guidelines, chemical resistances can differ from one specific formulation of rubber to another. Fortunately, Timco helps businesses identify the right rubber material for their performance needs and budget. Give us a call at 800-969-6242 or contact us online to have one of our experts design and supply the right parts for your applications.

Tensile Strength Ranges for Different Rubber Materials

Tue, 11 Jun 2024 08:00:00 Z

There are a wide variety of rubber and plastic materials used to manufacture parts. Appropriately enough, choosing the right material can be a make-or-break situation when it comes to tensile strength.

Simply put, some materials are better at being stretched or pulled without breaking. It’s important to find the right match for your tensile strength needs, so keep reading to find a breakdown of tensile ranges and maximum elongation for different rubber and plastic materials.

Rubber Tensile Strength Ranges

EPDM tensile strength

Tensile Range: 500-2500 P.S.I.
Elongation: 600% Maximum

Other Key Benefits:

Excellent resistance to UV exposure, ozone, aging, weathering.
Exceptional physical durability.

Silicone tensile strength

Tensile Range: 200-1500 P.S.I.
Elongation: 700% Maximum

Other Key Benefits:

Superior temperature resistance compared to most rubber and plastic compounds.
Compression set resistance, insulation from electricity, and ability to repel water make silicone an excellent material for gaskets, seals, and tubing.

Neoprene tensile strength

Tensile Range: 500-3000 P.S.I.
Elongation: 600% Maximum

Other Key Benefits:

Thrives in environments with intermittent exposure to oil and petroleum.
Combination of weathering resistance and low compression set make neoprene a versatile material for outdoor applications.

Nitrile tensile strength

Tensile Range: 200-3000 P.S.I.
Elongation: 600% Maximum

Other Key Benefits:

Withstands prolonged exposure to petroleum-based, mineral, and vegetable oils.
Resistance to heat aging allows nitrile parts to not harden and lose their damping capability as quickly as other materials.

Viton tensile strength

Tensile Range: 500-2000 P.S.I.
Elongation: 300% Maximum

Other Key Benefits:

Strong reputation as a high-performance elastomer for very hot and extremely corrosive environments.
Meets strict environmental regulations regarding emissions, spills, and leaks.

Natural rubber tensile strength

Tensile Range: 500-3500 P.S.I.
Elongation: 700% Maximum

Other Key Benefits:

Superior resistance to part fatigue.
Ideal for applications that deal with regular vibration, noise, contact, and issues that require exceptional physical durability.

Butyl rubber tensile strength

Tensile Range: 500-2500 P.S.I.
Elongation: 600% Maximum

Other Key Benefits:

Airtight and gas impermeability.
Combination of durability and flexibility provides tremendous shock absorption capabilities.

PVC tensile strength

Tensile Strength: 2.60 N/mm2
Elongation: 400% Maximum

Other Key Benefits:

Easy to process and blend into both rigid and soft materials.
Extremely lightweight material that is excellent for weight reduction.

Thermoplastic elastomer (TPE) tensile strength

Tensile Range: 500-2500 P.S.I.
Elongation: 600% Maximum

Other Key Benefits:

Soft touch is appealing for consumer goods and other parts.
Can be repeatedly stretched to at least twice its original length at room temperature and return to its original approximate length.

Invest in the Parts That Match Your Tensile Strength Requirements

The most effective parts are made when you identify the ideal material for your performance needs, and tensile strength is no exception. The problem is that even when tensile strength is a major factor, there are always other aspects you need to consider.

It’s Timco Rubber’s goal to help you determine the best, most cost-effective solution for your parts. It is our goal to relentlessly align our capabilities to your unique design, application, and material requirements, while offering you the highest value custom component solution for your business. Give us a call at 800-969-6242 or contact us online to have one of our experts design and supply the right parts for your applications.

EPDM vs. Natural Rubber: Material Comparison

Fri, 10 May 2024 08:00:00 Z

Choosing the right material for your parts isn’t a simple process. There are several different types of rubbers and plastic available, but some are better for your needs than others.

This process is even trickier when certain materials share characteristics. EPDM and natural rubber are two rubbers that provide a high level of physical durability, but there are other criteria that can make one a better fit for your parts. Let’s break down some of the main differences between EPDM and natural rubber.

Is EPDM Natural Rubber?

While EPDM and natural rubber share some similarities, they are not the same material. There are several differences between EPDM and natural rubber, starting with how they’re made.

As indicated by the name, natural rubber is made from a naturally occurring substance. Rubber latex has been harvested from plants since 1,600 B.C. and mixed with different ingredients to create different forms of natural rubber. EPDM rubber is a synthetic material that is made through the polymerization of ethylene, propylene, and certain other alpha-olefin comonomers.

The other main difference between EPDM and natural rubber involves how well they can hold up for various applications. Both materials are known for their physical durability, but certain environmental challenges and performance requirements can make one option better than the other. These different needs include:

Weathering
Heat resistance
Tear resistance
Adhesion to metal
Compression set and resilience

Weathering

If your parts need to survive outside, EPDM is an excellent option. This synthetic rubber is ideal for any parts that need to withstand regular exposure to sunlight, ozone, and other outdoor elements. Natural rubber struggles with the same type of exposure, which can lead to premature part failure.

Heat resistance

EPDM is a better option is you need a higher temperature range. EPDM can operate up to 350 degrees Fahrenheit and provides excellent stability and steam resistance. Natural rubber caps at 175 degrees, a notable difference compared to EPDM.

Tear resistance

EPDM is an extremely durable material, but it can struggle with tearing over time. Natural rubber doesn’t have that problem. Parts made with natural rubber are extremely resistant to force that would tear other types of rubber, giving it an edge for parts like molded seals and hoses.

Adhesion to metal

Some materials adhere to metal better than others. EPDM is a solid option for rubber-to-metal bonded parts and can accommodate a lot of potential part needs. However, natural rubber truly excels when it comes to adhesion to metal, making it a great choice for particularly challenging rubber-to-metal bonded part designs.

Compression set and resilience

Compression set and resilience are other areas where EPDM is good, but natural rubber truly excels. Natural rubber is not only extremely resistant to deformation after being placed under pressure, but also rebounds back to its original shape better than most other compounds.

Uncover Whether EPDM, Natural Rubber, or Some Other Material is Right for You?

Choosing the right material can have a drastic impact on how well your parts perform. EPDM and natural rubber are both excellent options depending on your specific design needs and operating environment – the challenge is determining which material is right for your applications.

The good news is that you don’t have to go through this search alone. Timco works with businesses to provide a custom part solution tailored to their performance requirements and budget. Give us a call at 800-969-6242 or contact us online to talk to one of our experts about supplying parts customized for your applications.

How Long Does EPDM Last?

Wed, 24 Apr 2024 08:00:00 Z

A material can have all the qualities you want, but it won’t matter too much if it doesn’t last.

EPDM is a high-density synthetic rubber known for its versatility and cost-effectiveness. It’s combination of durability and resistances to aging, abrasion, and heat have made it a popular option for everything from industrial applications to roofing. Let’s break down just how long EPDM can last and the different factors that can shorten that lifespan.

The Expected Lifespan for EPDM Parts

In general, rubber materials can last years to decades depending on the compound and how you plan to use it. EPDM specifically has an estimated shelf life of up to 15 years depending on the application and can remain functional for decades. For example, one study found that EPDM roofing had a minimum age of 30 years and a possible service life of more than 50 years.

Of course, a part’s lifespan is also dependent on its working conditions. A more passive part like an EPDM roofing membrane won’t have to deal with as much wear and tear. However, an EPDM compressor grommet for an outdoor HVAC unit will likely degrade at a quicker pace. Even in storage, too much exposure to the elements will age rubber to various degrees.

What Can Shorten EPDM’s Lifespan?

The good news is that EPDM is a durable, long-lasting rubber material for a variety of parts. Still, it’s important to take care and use EPDM in the right situations.

EPDM can last for decades, but there are different environmental hazards that can and will drastically shorten its lifespan. Those hazards include:

Oil: Exposure to oil is one of the biggest threats to EPDM parts. Unlike materials like neoprene and nitrile, oil will cause EPDM to degrade or even swell with too much exposure.
Solvents: A variety of solvents can cause EPDM parts to prematurely break down. Examples of problem solvents include everything from water to chemicals like acetone and methanol.
Extreme temperatures: EPDM can withstand temperatures ranging from -60 to 350 degrees Fahrenheit, but it does have a limit. Parts made with EPDM can shrink, stretch, and crack when exposed to temperatures outside its limit for long periods.
Flame: While EPDM is stable in high temperatures within its range, it is not flame resistant. EPDM can catch fire, although additives and blockers can be added to improve flame resistance.
Tearing: EPDM offers great physical durability to most wear and tear, but tearing can pose some problems. If tearing is a major threat, you may need to consider a material like butyl or Viton.

Invest in Long-lasting EPDM Parts

EPDM is an excellent material for many industries, but it’s not always easy to find the right compound for your exact needs. Whether you need a specific formulation of EPDM or a different rubber material altogether, Timco can help.

We work closely with business to supply them with custom rubber and plastic parts designed around their performance criteria and budget. Give us a call at 800-969-6242 or contact us online to talk to one of our experts about your part needs.

What is the Best Rubber for UV Resistance?

Wed, 03 Apr 2024 08:00:00 Z

Choosing the right material can be a make-or-break deal if your parts are going to be outside. Depending on your application, rubber parts may be exposed to sunlight. Those UV rays can quickly break down materials that aren’t made to withstand the sun, making UV resistance crucial for long-term success.

The problem is that it’s not necessarily easy to determine which material is right for your applications. There are multiple rubber materials that can be a good fit for outdoor applications, so let’s break down which rubber materials are best for UV resistance (and a few to avoid).

UV Resistant Rubber Materials

EPDM

Ethylene Propylene Diene Monomer (EPDM) is an excellent option for parts that need to beat the elements. This versatile, cost-effective rubber material is known for its durability, which includes excellent weathering resistance, including an ability to withstand regular exposure to sunlight.

Silicone

Silicone rubber is one of the most popular materials for high temperature environments, and it can help you beat more than just heat. Silicone can more than hold its own when exposed to sunlight, making it a great option for window seals and other parts that will need to survive the elements.

Viton

Viton has a reputation as a high-performance elastomer that can succeed in demanding environments. In fact, Viton was introduced into the aerospace industry in 1957 due to its reliability, as UV resistance is just one of the material’s many impressive qualities.

PVC

PVC is a durable material that can be manufactured into both rigid and flexible parts. Technically a thermoplastic, this particular material is highly customizable and is a great option for tubing, frames, and other lightweight applications that will be exposed to the sun.

TPE

Thermoplastic elastomers (TPE) are notable for their stretching capabilities and soft touch. They also offer ample ozone and UV resistance, making them ideal for tubes, seals, and consumer goods that people will interact with or need for outdoor environments.

Neoprene

Neoprene is a natural fit for applications that require both oil and UV resistance. This particular material offers a good all-around balance of performance characteristics and especially thrives in automotive applications and other environments where parts can face potential exposure to the elements and oils.

Butyl

Butyl is another rubber material that boasts resistance to several potential hazards. In addition to UV rays, butyl is good at withstanding heat, aging, weather, ozone, and chemicals. Butyl also shares the distinction of being airtight and gas impermeable, making it great for sealants, liners, and other parts.

Materials to Avoid for UV Resistance

Nitrile

Nitrile is one of the best rubber materials available for superior oil resistance, but it struggles with the elements. Most outdoor applications aren’t good fits for nitrile as it tends to age poorly when exposed to UV rays.

Natural rubber

If you need a part that will make regular contact with abrasive surfaces or other damaging elements, natural rubber is a great option. The problem with natural rubber is that sunlight will wear it down quicker than other materials, making it brittle and less flexible.

Find the Right UV Resistant Rubber for Your Parts

The best parts match the right material to your performance needs. That’s why Timco partners with businesses to help them invest in the best, most cost-effective part solutions.

Our experts thoroughly analyze your needs to identify the best material for UV resistance and design the most effective part for your budget. Give us a call at 800-969-6242 or contact us online to have one of our experts design and supply the right parts for your applications.

What is the Best Rubber for Abrasion Resistance?

Wed, 06 Mar 2024 08:00:00 Z

While some rubber parts may never come in physical contact with other surfaces, others will be put to the test. Abrasion resistance is a must for everything from rubber linings to shock mounts, and the right material can make all the difference. Keep reading to learn more about abrasion resistant rubbers and which materials may be suited for your parts.

How is the Abrasion Resistance of Rubber Tested?

The best way to see just how well rubber materials will hold up to regular abrasion is to see how long it lasts under constant scrapes and scuffs. The standard process for test abrasion resistance is to see how well a specific rubber performs in the revolving drum test.

This particular test takes a rubber sample and moves it across an abrasive sheet mounted to a drum. As the drum revolves, the regular abrasion will attempt to wear down the test rubber. After a set period of time, the drum will stop and someone will remove and weigh the rubber sample.

The amount of weight and volume lost during this process will signify the abrasion resistance of a material. Samples the lose less weight and volume were better able to withstand scuffs and scrapes, whereas samples that lost more weight weren’t able to resist the abrasive contact.

Which Rubber Materials are Suited for Abrasion Resistance?

The good news for businesses in need of abrasion resistant rubbers is that there are multiple materials available that can handle regular wear. Let’s break down some common high abrasion rubber materials (and a few you may want to avoid).

High Abrasion Rubbers

Neoprene

Neoprene is multipurpose elastomer for a good reason – it can withstand a lot of challenges. That durability includes excellent abrasion resistance, along with good weathering resistance and solid oil resistance. When it comes to abrasion, the only downside of Neoprene is that it’s so versatile that you might be able to find a more cost-effective alternative.

Nitrile

A lot of what you can say about Neoprene also applies to Nitrile. Both materials share excellent abrasion resistance and the ability to thrive in environments with oil. The major differences are that Nitrile struggles with weathering and sunlight, but can survive even more exposure to oil. Either way both Neoprene and Nitrile aren’t going to let you down when it comes to abrasion.

Natural Rubber

While many applications call for synthetic rubbers, natural rubber is a great option for physically demanding applications. Natural rubber parts can regularly take a beating, making them ideal for agitators, rollers, and other parts – just don’t ask them to last outdoors or in environments with oils or solvents.

Viton

Viton was originally made to last in outer space, so demanding environments are no challenge for this material. This fluoroelastomer polymer can withstand abrasion, tearing, oils, solvents, weathering, and just about everything you can throw at it. Of course, that may make Viton overqualified for your application if you’re looking for more cost-effective materials.

EPDM

EPDM, more formally known as Ethylene Propylene Diene Monomer, is an extremely versatile, cost-effective rubber materials. EPDM offers good resistance to abrasion, weathering, and other long-term challenges, making it a very durable part. Oils and solvents and one of the few drawbacks to using EPDM, so keep that in mind if either of those are present in your application.

Low Abrasion Rubbers

Silicone

Silicone is mostly known as an excellent high-temperature rubber, but it can struggle with more physically demanding applications. Formulations of silicone will provide fair to poor abrasion resistance, making it a less optimal choice if regular wear and tear is a major factor.

Butyl

Butyl is well-regarded for its durability and shock absorption, but it can struggle with abrasion. This material is great for manufacturing shock mounts and liners, but scratching and scraping will wear Butyl down quicker than other available rubbers.

Invest in the Right Abrasion Resistant Parts

The right material can make all the difference. While abrasion can be a major consideration, it’s critical to invest in a material that addresses all your needs.

Fortunately, Timco is here to help businesses identify the best, most cost-effective parts for their performance criteria and budget. Give us a call at 800-969-6242 or contact us online to have one of our experts design and supply the right parts for your applications.

Silicone vs. Plastic: Material Comparison

Wed, 14 Feb 2024 08:00:00 Z

Figuring out which material is right for manufacturing your parts is already difficult when comparing rubber compounds. It gets even trickier once you add plastics into the mix.

While some people may confuse silicone for plastic, it’s technically a synthetic rubber made by extracting silicon, passing it through hydrocarbons, and mixing it with other chemicals. Trying to figure out which is better for your needs? Let’s break down what differentiates silicone from plastic materials.

The Differences Between Plastic vs. Silicone

Silicone rubber is an excellent option for a variety of applications, but there are some situations where a plastic material like TPE or PVC would be a better fit for your needs. There are a few different criteria that help you decide whether silicone or plastic is right for your parts.

Resistances
Temperature tolerance
Sustainability
Cost

Resistances

There are a variety of environmental factors that will impact your choice of material, so deciding between a performance plastic or silicone rubber can depend on what your part will need to withstand. For example, silicone is an excellent option for any parts that need to endure weathering, flame, and steam. However, a plastic material like PVC is going to be better suited for acids, alkalis, grease, oil, and chemicals.

Temperature tolerance

There are some specialty plastics available for high and low temperatures, but it’s hard to beat to withstand extreme environments. Silicone offers great thermal stability and is graded for temperatures ranging from -150 to 480 degrees Fahrenheit. In addition to being able to survive short periods of use at the extreme ends of that range, silicone can also withstand long-term continuous use at high temperatures without melting or becoming brittle.

Sustainability

If material sustainability is a major factor, silicone and various plastics can be attractive options. Plastics are generally recyclable, including more notable elastomers like TPR that can be melted down and reformed. It may surprise some people that silicone is recyclable, but you’ll need to take the scarp silicone to a specialized recycling program to properly break down the material.

The flipside of that argument is that part lifespan can limit just how much material is made over time. Silicone is a lot more durable and long-lasting than a lot of available plastics aside from performance materials like TPE and PVC. If the long-term durability of silicone is a major advantage, then you wouldn’t need to produce nearly as many replacement parts.

Cost

At the end of the day, the right part for your needs is the most cost-effective one. Determining which one is the best bang for your buck depends on your performance needs. Silicone is generally more expensive than plastic because it has a more complicated manufacturing process. However, that may be the right price if silicone covers your specific design needs, so make sure to closely evaluate which materials meet your parameters to make the most economic investment.

Which Type of Material is Right for You?

Whether you end up needing silicone rubber or a plastic solution, there are plenty of good materials available – it’s just a matter of finding the right one for your applications. The good news is that you don’t have to go through this search alone.

Identifying the specific rubber or plastic compound to address your exact pain points and budget takes a lot of knowledge and experience. At Timco, our experts can help guide you through the material selection process and design a custom part tailored to your needs and budget. Give us a call at 800-969-6242 or contact us online to talk to one of our experts about your rubber or plastic part needs.

Is TPE Toxic?

Wed, 24 Jan 2024 08:00:00 Z

It’s common for applications to require parts that can withstand exposure to oil or sunlight. In other situations, it’s essential to consider how the material will impact the end user.

From medical tubing to consumer goods, it’s essential for some products to be safe for human use. The problem is that some compounds can lead to toxic responses that can have dire effects on end users, limiting businesses options for wat they can and should use to manufacture their parts. The good news is that thermoplastic elastomers (TPE) – one of the most appealing materials for consumer goods – is a safe option for industries in need of non-toxic parts.

What Makes TPE Non-Toxic?

Sometimes what makes a material a good choice is what it doesn’t feature. TPE doesn’t contain several harmful substances that make other rubbers and plastics unsafe for consumer goods, medical applications, and other designs that can’t be toxic. That includes substances like phthalates, latex, and BPA. TPE is also hypoallergenic, making it ideal for any application that will result in direct contact with people’s skin.

Another advantage of TPE is that it can also handle a lot of wear and tear, even in environments with strict cleaning regiments. TPE parts can stretch, bend, and handle regular sterilization. That makes them ideal for food production, clean rooms, and other environments where patient and consumer safety is absolutely essential.

Does Non-Toxic TPE Need to Meet Any Other Standards?

Even though TPE is inherently safe for human use, there are a various regulations that TPE parts must meet for use in certain applications. Even if TPE may be non-toxic by definition, certain industries or use cases can require companies to keep a close eye on which chemicals (and how much of those chemicals) are present in any material before it can be cleared for use.

The food industry is one such market that needs materials to meet Food and Drug Administration (FDA) standards to keep parts in production facilities and other safe for use. Most TPE formulations are approved by the FDA, but there may be some that don’t pass safety standards. Children’s products also have specific safety requirements to keep people safe. Fortunately, rubber part suppliers can source specific formulations of TPE to ensure it meets specific industry regulations.

Invest in Non-Toxic TPE Parts Based on Your Exact Needs

TPE is an incredibly versatile material both because of its non-toxic benefits and several other desirable qualities. However, there are plenty of other factors that affect just how well your material of choice will fare in your application.

The good news is that you don’t have to determine the best, most cost-effective part solution on your own. Timco partners with businesses to supply them with custom rubber and plastic parts made specifically for their applications. Give us a call at 800-969-6242 or contact us online to talk to one of our experts about non-toxic TPE parts for your business.

Material Comparison: TPE vs. PVC

Mon, 08 Jan 2024 08:00:00 Z

Who said that rubber and plastic have to be drastically different? TPE and PVC are two different materials that share a lot of the same benefits, even though one is rubber and the other is plastic.

From tubes to seals, TPE and PVC are both sought-after materials for durable materials that can be extruded or molded for a variety of industries. However, there are always key differences that can make one a better solution. Let’s break down each material to figure out which one is the better fit for your parts.

The Differences Between TPE and PVC

By far the biggest difference between TPE and PVC is that one is a synthetic rubber while the other is a thermoplastic. PVC was discovered by accident by German chemist Eugen Baumann but is now made by polymerizing vinyl chloride monomer and blending the resulting polymer with various formulas. TPE was invented back in 1926 and is now made by copolymerizing two or more monomers into a plastic compound.

Despite their different origins, there are some notable similarities between the two materials. both compounds can be made in soft materials that can are colorable. PVC and TPE are also excellent for outdoor applications thanks to their tremendous UV resistance and water resistance. However, there are some qualities that can make it a better fit for your needs:

Oil and other resistances
Hardness
Elasticity
Temperature range
Recyclability

Oil and other resistances

The presence of oil can make or break the success of a lot of materials. PVC is one material that can hold its own in oily environments, making it very effective for use in the automobile industry and any other markets where oil regularly occurs.

TPE is less suited for oil exposure. This particular plastic boasts fair oil resistance, but struggles with constant oil exposure. This makes it fine for applications with occasional oil contact, but not for any design where oil regularly appears or if a large amount of it can touch the part in question.

Hardness

When it comes to hardness, PVC gives you plenty of options. PVC can be either soft or rigid, with several degrees of hardness in between. This degree of manufacturing flexibility allows engineers to utilize PVC for everything from rigid drainpipes to IV bags.

TPE also offers varying degrees of hardness, but not to the same extent as PVC. TPE is mostly known for its soft-touch features and slip resistance, making it great for consumer goods or parts that people may contact over time, such as wire or cable insulation and automotive parts.

Elasticity

Elasticity is another scenario where both materials perform admirably, however, one has a clear advantage. PVC offers good elasticity and stretchability, with a maximum elasticity of 400%, which is quite good. However, TPE is simply better at being expanded. TPE parts have a maximum elasticity of 600%, giving it a notable edge when it comes to bending or stretching preventing damage or deformation.

Temperature range

While PVC and TPE are comparable for low temperature usage, there is a notable difference for heated environments.

PVC isn’t known as a material that can withstand particularly high heat. PVC parts are typically able to withstand up to 140 degrees Fahrenheit – not a bad limit, but certainly not one for tougher environments. TPE does offer more heat resistance with a high-end usage of up to 250 degrees, giving you some more flexibility in hotter applications.

Recyclability

If sustainability or recycling initiatives are important to you, TPE is an excellent material option. Unlike most rubbers, TPE parts can be repurposed through molding and extrusion, making it one of the more eco-friendly material solutions available. TPE also consumes far less energy than similar materials, making it more sustainable in multiple ways.

PVC can be recycled, but not nearly as easily as TPE. Similar to recycling silicone, the process to reprocessing PVC is both more complicated and more difficult, which can be an immediate downside for businesses trying to meet sustainability goals.

PVC vs. TPE: Invest in the Right Material for Your Parts

Is TPE better than PVC? It ultimately depends on what your business is trying to accomplish. There are pros and cons to each part, so you’ll need to evaluate your ideal performance requirements and weigh your options.

Fortunately, you don’t need to go through that process alone. Timco works with businesses to uncover the best, most cost-effective solution for your parts. Give us a call at 800-969-6242 or contact us online to talk to one of our experts about the parts you need.

What is the Best Rubber for Weather Resistance?

Wed, 08 Nov 2023 08:00:00 Z

When it comes to material selection, your operating environment matters. There are plenty of materials available for manufacturing parts and each of them has various benefits and drawbacks. Once such advantage or disadvantage is weathering resistance.

Simply put, some rubber materials aren’t made to last outside. Weathering can take its toll on parts in multiple ways, including exposure to UV rays, ozone, and water. The key to success is finding the right rubber material that offers the right amount of weathering resistance for your budget. Let’s break down the materials that are great fits, acceptable solutions, and bad options for weather resistant rubber and plastic materials.

Materials that Offer Excellent Weathering Resistance

EPDM

When it comes to weathering resistance, EPDM rubber is one of the first materials that come to mind. EPDM is a high-density synthetic rubber that is made to last. This material is extremely tough and can survive prolonged exposure to UV, ozone, water, and just about any other substance found outdoors. Combined with good abrasion resistance and fabrication flexibility and EPDM is a great, cost-effective solution for outdoor parts.

Viton

Viton is another rubber compound that’s so resistant to demanding environments that it’s regularly used to make parts that go into outer space. This material’s resistance to weathering, among many other environmental hazards, has led to its use in multiple markets that need something that’s even tougher than EPDM. Of course, that added performance will come with at a higher price point, but that added cost can be well worth it depending on the application.

Silicone

Silicone rubber is another material that provides ample weathering resistance for outdoor parts. While silicone is not an inherently tough compound – EPDM and Viton by far outclass it in terms of abrasion and tear resistance – this elastomer repels water, resists sunlight, and handles other weathering elements with little to no deterioration. These qualities can be very attractive for parts that need to thrive in hot and cold environments.

PVC

While technically not a rubber material, there’s no doubt that PVC is an excellent option for weathering resistance. This particular thermoplastic is lightweight, durable, and can be rigid or flexible. These qualities make them a natural fit for door panels, protective strips, and other parts that won’t corrode or break over long-term exposure to bad weather conditions.

TPE

TPE is another excellent thermoplastic for parts in need of weathering resistance. This material is a great choice for applications that require a soft, flexible material that will end up outside, such as items with touch grips, automotive seals, and other single-material or coextruded parts.

Materials that Offer Some Weathering Resistance

Neoprene

Sometimes all you need is a reasonably priced, mid-performance polymer to handle all your weather concerns. Neoprene provides solid resistance to the effects of UV rays, ozone exposure, and water along with excellent physical toughness. This rubber also has the added benefit of oil resistance, making it a great option for outdoor applications that may encounter oils, solvents, and other problematic substances.

Butyl

Traditionally known as an excellent material for shock absorption and dealing with regular agitation, Butyl is also a good fit for outdoor applications. Butyl is excellent at repelling water and other elements while offering good resistance to the ozone and general aging. It also has the unique benefit of being completely airtight so that no gases permeate the material.

Materials to Avoid for Weathering Resistance

Nitrile

Nitrile is similar to Neoprene in a lot of ways – it’s commonly used for oil resistance and I a physically durable material. The problem is that while Nitrile is better for regular contact with oils and solvents, it is not suited for outdoor use. Even with a solid resistant to water, sunlight will rapidly age Nitrile until your part fails.

Natural rubber

Sadly, natural rubber is not a natural fit for outdoor applications. While physically quite tough, sunlight, ozone exposure, and other substances found in nature will cause rubber to break down more quickly than synthetic compounds.

Identify the Best Weather-Resistant Material for Your Parts

Weathering resistance is just one factor that impacts material selection. The best material should address both your weathering needs and other criteria, including budget. Of course, that’s not easy without some help.

Timco partners with businesses to help them uncover the best, most cost-effective part solution for their applications. Want our experts to help you identify and invest in rubber and plastic parts custom made around your needs? Give us a call at 800-969-6242 or contact us online today.

Material Comparison: Viton vs. Nitrile

Tue, 17 Oct 2023 08:00:00 Z

When you need rubber parts, there are plenty of options available to your business. The problem is that when you’re presented with so many different compounds, it’s hard to tell which one is better for your exact needs.

Viton and Nitrile are two different synthetic rubber materials that can help make or break the success of your parts. Each material is regularly used to make seals, gaskets, and other parts, but one can be a much better choice based on your performance requirements and budget. Ready to find out if Viton or Nitrile is right for your applications? Let’s break down each material to see why they might be right for your parts.

The Differences Between Nitrile and Viton

Both Nitrile and Viton are considered synthetic rubber, there are different processes to producing each compound. Nitrile, also known as Buna-N or NBR, is made when acrylonitrile (ACN) and butadiene are bonded through polymerization. The newly created material is then formed into sheet rubber and vulcanized with different ingredients to give the Nitrile various desirable performance qualities.

Viton (FKM) first came into notoriety when it was introduced to the aerospace industry in 1957. Originally marketed by DuPont, the Viton brand is now owned by Chemours and is manufactured with 100% pure fluoroelastomers. Since its introduction, Viton spread from aerospace applications to being used as a high-performance elastomer for applications that require premium performance.

Interestingly, Nitrile and Viton both share several characteristics and mainly differ in just how well they perform in certain environments or situations. Each material can be the difference maker between a good part and a bad investment for several reasons, so it’s important to identify which is best for you. Key considerations Viton and Nitrile include:

Oil and other resistances
Durability
Temperature range
Cost

Oil and other resistances

Arguably the most notable shared characteristic between the two materials is their resistance to oil and petroleum products. Still, there are specific instances where one part may be better in these types of environments.

Nitrile is a great option for parts that are constantly exposed to oil or operate in places where that oil is extremely concentrated. Viton takes that oil resistance and ticks it up a notch. This particular material is built for heavy duty applications that demand extreme chemical resistance, exposure to hydraulic fluids, and other extremely corrosive substances. For example, both Viton and Nitrile O-rings are built to succeed around oils and fuels, but Viton is the go-to option when you need extreme resistance.

Durability

Overall, both materials are quite durable. However, Viton is known for being about as tough of a synthetic rubber that you can find. Viton is designed to resist just about everything you can throw at it – there’s a reason it was originally marketed to the aerospace industry. Viton boasts good abrasion and tear resistance, is excellent at dealing with UV exposure, and can handle a wide range of demanding environments.

While Viton is exceptionally tough, Nitrile is no slouch when it comes to durability. Nitrile is not only great at resisting tears, abrasions, and other physical damage, but also offers excellent compression set resistance. The only major downside for durability is that it struggles with weathering and shouldn’t be used for outdoor applications.

Temperature range

Temperature range is another factor where both materials perform well. Once again, Viton has an edge when it comes to more demanding environments, especially when considering certain grades of fluorelastomers that can operate successfully in -40 degrees Fahrenheit. Here are the typical temperature ranges for each material:

Nitrile
- Low Temperature Usage: -30°F to -40°F | -34°C to -40 °C
- High Temperature Usage: Up to 250°F | 121°C
Viton
- Low Temperature Usage: 10°F to -10°F | -12°C to -23°C
- High Temperature Usage: 400°F to 600°F | 204°C to 315°C

Cost

While Viton has the edge in a lot of areas, that specialty performance comes with a cost – quite literally. Simply put, Viton is a high-performance elastomer that will require a higher budget because it can perform in such demanding scenarios. Nitrile is also a specialty part, but it can be a much more cost-effective material if your performance requirements aren’t so demanding.

Nitrile vs. Viton: Invest in the Right Material for Your Parts

When you need tough materials that can handle oil and tough temperatures, Viton and Nitrile might be the perfect polymers for your parts. Of course, both rubbers are probably less suited for general purpose components. There are pros and cons to every compound, which is why it’s so critical to identify the best, most cost-effective solution for your parts.

Fortunately, Timco is here to help businesses invest in quality parts made for their exact needs. Ready to invest in quality parts custom-made for your application and budget? Give us a call at 800-969-6242 or contact us online about your part needs.

Material Comparison: EPDM vs PVC

Tue, 26 Sep 2023 08:00:00 Z

When it comes to manufacturing parts, material selection can make or break your investments. There are plenty of compounds to choose from, but some are better suited for your applications than others.

EPDM and PVC are two commonly used polymers for a variety of industries. Both compounds are go-to solutions for tubing, seals, and other parts, but one can be much better than the other depending on your performance needs and design requirements. It’s time to break down PVC vs EPDM to see which is better suited for your parts.

The Differences Between PVC and EPDM

While EPDM and PVC are seemingly quite different, both polymers share several characteristics. PVC, also called polyvinyl chloride, is a thermoplastic made by polymerizing vinyl chloride and introducing various additives to achieve certain properties. EPDM is a synthetic rubber known as Ethylene Propylene Diene Monomer and is made by polymerizing ethylene, propylene, and certain other alpha-olefin comonomers. In general, both materials boast excellent durability, weathering resistance, and ease of processing.

Of course, there are plenty of characteristics that these polymers don’t share. These performance requirements can be the difference between a good part and a bad investment for several reasons. The differences between EPDM and PVC include:

Oil and solvent resistance
Flame resistance
Temperature range
Hardness
Color options

Material resistances

While both EPDM and PVC share some resistances, the latter can stand up to a few more substances. EPDM struggles in environments with oils, solvents, and other similar fluids. PVC doesn’t have this problem, making it more useful in certain medical, automotive, and other applications where your parts will need to endure these factors.

Flame resistance

Exposure to fire is another key criteria where one material performs better than the other. PVC has a much better track record in the hot seat as it’s very good at resisting flame. EPDM is naturally flammable, but can be made to be much more fire resistant with the addition of blockers and additives in the manufacturing process.

Temperature range

While EPDM is naturally less flame resistant, it does stand up to the heat better than standard PVC. EPDM can be used in temperatures as low as -60° F (-51⁰ C) and as hot as 350° F (177⁰ C). This synthetic rubber is also very stable at both high and low temperatures, making it a reliable general-purpose elastomer in a variety of conditions.

PVC doesn’t quite have the same temperature range as EPDM. This thermoplastic’s ideal range goes from -40° F (-40⁰ C) to 140°F (60°C). If that limited operating range is an issue, EPDM will give you a lot more temperature resistance in both hot and cold environments.

Color options

Performance isn’t the only factor that can make a difference. If you need your parts colored for installation, marketing, or some other purpose, PVC can easily be made to be black, clear, or some other color for both rigid and flexible parts. EPDM doesn’t share this quality. EPDM parts are typically going to be some form of black or gray, making it a less attractive option if you need clear or colored parts.

Invest in the PVC, EPDM, and Other Parts Your Business Needs

Whether you need roofing materials, automotive components, or any other plastic or rubber part, it’s best to invest in a long-term part solution. There are pros and cons to every polymer. It’s important to identify the best, most cost-effective material for your needs, whether it’s PVC, EPDM, or something else.

The good news is that you don’t need to find this solution on your own. Timco works directly with businesses to identify their part needs and supply them with a part solution designed around their application and budget. Ready to invest in quality parts custom-made to your exact needs? Give us a call at 800-969-6242 or contact us online to talk to one of our experts about your parts.

Material Breakdown: What is Butyl Rubber?

Fri, 25 Aug 2023 08:00:00 Z

Over the years, researchers have developed countless variations of synthetic rubber. The sheer amount of these base rubber and their different formulations give businesses plenty of options – if they can figure out which one is best for them.

Choosing the right compound can be overwhelming without enough information. That need for knowledge is why we’ve broken down the origins, benefits, and downsides of various rubber materials. Up next is butyl rubber, a compound that’s ready to take a beating over time.

What is Butyl Rubber Made Of?

Like other synthetic rubbers, butyl is produced by polymerization of different substances. Butyl, also known as polyisobutylene or PIB, is specifically made by a polymerization of 98% isobutylene and 2% isoprene. Isoprene is an important ingredient for butyl as it creates double bonds that allow for crosslinking via vulcanization. However, the reaction caused by adding isoprene to isobutylene requires the material to be synthesized at low temperatures to avoid issues.

Butyl’s origins date all the way back to 1931 when polyisobutylene was first developed by German chemical producer BASF. Six years later in 1937, American researchers William J. Sparks and Robert M. Thomas developed this initial version of PIB into the butyl rubber we know today. Over time, variations of butyl to achieve ideal performance requirements for a variety of applications.

The Advantages of Butyl Rubber

Like other specialty material, butyl boasts a few different qualities that make it a go-to choice for numerous applications and industries. Simply put, butyl is built to last thanks to the following qualities:

Physical durability
Low gas and moisture permeability
Shock absorption
Multiple resistances

Incredible physical durability

Some materials need to withstand regular agitation. Butyl is able to take a beating over time without failing. This tough compound is able to take blow or deal with distress while maintaining seals and continuing any other job functions.

Low gas and moisture permeability

Butyl rubber has the distinction of being the only rubber material that is truly impermeable to both air and gas. While others may drastically limit airflow, butyl can completely prevent gas and oxygen from passing through a part. It also stops water and other moisture from seeping through, making it an ideal solution for seals, liners, and other parts that can’t have any leakage whatsoever.

Shock absorption

Butyl is one of the best rubber compounds for vibration and sound dampening. The material is known for being both durable and flexible, and those capabilities make it a natural choice for shock mounts, suspension bushings, and other parts that need to limit how much vibration and sound is made in an application.

Multiple resistances

The wrong substance or environmental hazard can derail your plans. Fortunately, butyl boasts resistances to a variety of potential problems. These include either good or excellent resistances to the following:

Aging
Ozone
Weathering
Water
Chemicals
Heat

When is Butyl Rubber the Wrong Choice for Your Parts?

While polyisobutylene has plenty of advantages, there are some situations where it isn’t the best choice for your parts. Every compound has its drawbacks, and butyl is no stranger with the following disadvantages:

Poor oil resistance
Poor abrasion resistance
Not an ideal compression set for parts that need to bounce back
Not made for extreme temperatures like some other materials

There are also some occasions where butyl is a perfectly fine choice, but there are more cost-effective options out there. Butyl is a great material, but if a more economic choice like EPDM can do as good of a job, it makes more sense to go with the less expensive compound to maximize the value of your parts.

What is Butyl Rubber Used For?

There are several different types of parts that can benefit from some form of polyisobutylene. Butyl has been used to make everything from gloves and tapes to heavy-duty automotive mounts. A variety of industries have been known to use this particular material for the following parts and components.

Shock mounts
Tubeless tire liners
Inner tubes
Stoppers
Sealants and adhesives
O-rings
Pond Liners
Tank Liners

Invest in a Material That’s a Natural Fit for Your Applications

Butyl is a great compound, but there’s so many out there that it can be hard to figure out which material is right for your needs. Specific performance requirements or design challenges can narrow down which rubber or plastic materials are practical for your needs. The good news is that you don’t need to figure out which material is right on your own.

Timco Rubber works closely with businesses to help them find the best, most cost-effective solutions for their parts. Our experts review your needs to identify the most cost-effective compound and part solution based on your specific performance requirements, operating environments, and budget.

Ready to invest in quality part? Give us a call at 800-969-6242 or contact us online to talk to one of our experts about the parts you need.

EPDM Flammability: Is EPDM Fire Resistant?

Wed, 19 Jul 2023 08:00:00 Z

EPDM is one of the most useful and versatile synthetic rubbers available in the market. If you’re looking for a cost-effective, extremely durable material, EPDM rubber is a go-to option for grommets, tubes, and most other parts. However, even this particular compound can run into potential problems.

While EPDM can withstand a lot, how does it fare when dealing directly with fire? Fire or flame resistance is a necessary feature for many industrial, automotive, and other industries. Can EPDM survive in the hot seat

Is EPDM Flammable?

Yes and no. By itself, EPDM is a highly flammable material that isn’t suitable for environments with flame, excessive heat, or any other factors that may cause your parts to burn and catch fire.

Of course, that isn’t the end of the story. One of the benefits of synthetic rubbers is that they can be formulated with special blockers and additives to improve their performance. It’s very common for compounders to modify rubbers and plastics to help them meet specific industry performance criteria. When it comes to EPDM flammability, these can include certifications for:

UL94-VO fire safety regulations
ASTM E162 for surface flammability
ASTM C116 for flame propagation

By adding flame retardant blockers, compounders can drastically reduce EPDM’s flammability. Studies have shown that specially formulated EPDM exhibits “excellent flame-retardant performances. In addition, flame retardant EPDM significantly decreases the heat and smoke release. These combined qualities make custom EPDM compounds a viable option for relevant industries and applications.

Find the Right Flame-Resistant Material for Your Application

Simply put, you don’t want your choice of material to land you in the hot seat. There are plenty of rubber and plastic compounds available, and plenty of them will go up in flames. The good news is that there are ways to make sure your parts are built for success.

While EPDM can be a viable choice for flame-resistant parts, it may not be your best option. Neoprene, viton, and silicone are naturally less flammable than EPDM and may be better suited for your applications depending on your performance requirements, budget, and plenty of other factors. Trying to figure out which material is right for your needs? Give us a call at 800-969-6242 or contact us online to talk to one of our experts about the parts you need.

Rubber Options: Is Silicone Conductive?

Wed, 12 Jul 2023 08:00:00 Z

Typically speaking, rubber and electricity doesn’t mix. Like most nonmetals, rubber is more of a natural electrical insulator than something that will transmit any electrical currents. Those properties include synthetic rubbers like silicone – but does that always have to be the case?

The beauty of synthetic rubbers like silicone is that there’s a lot of ways to manufacture these materials. It’s time to break down whether silicone rubber can conduct electricity and how it can benefit your applications.

Does Silicone Conduct Electricity?

In general, silicone rubber is known for electrical resistivity than as a conductive material. Standard formulations of silicone are known for excellent electrical insulation, to the point where there’s no decline in insulation performance even when silicone is immersed in water. As such, a lot of the silicone parts or materials you’ll find will not have any conductive properties.

Of course, that natural resistance doesn’t mean that silicone can’t conduct electricity. Like other synthetic materials, there are a variety of ways that you can formulate these compounds. By adding certain fillers or additives, rubbers can be made to have more ideal performance capabilities and characteristics for your applications. Those possibilities include making silicone electrically conductive.

How to Make Conductive Silicone

The way to formulate electrically conductive silicone rubber is to combine it with filler materials that are good enough conductors to overcome silicone’s natural insulative properties. Fortunately, there are a couple of additives that make this possible

Both carbon black additives and some form of silver or metal-based nanoparticles can increase silicone's electrical conductivity. These additives offer extremely high electrical conductivity, along with the thermal conductivity and stability required to handle the high temperatures.

The problem with the nanoparticles is that they can’t be used for extruded silicone parts. They’re also an extremely expensive option for conductive silicone. Carbon black additives offers both the mechanical properties and conductive performance to help address both of those issues. Silicone made with carbon black additives can not only be extruded, but also offers the following benefits:

High electrical conductivity (around 2 Ohm/cm resistance)
Excellent temperature stability
Flame retardant options
Varying hardnesses and densities

Part Options for Conductive Silicone

There are a variety of industries that can make use of conductive silicone, such as the electronics, medical, and military markets. Simply put, if your application needs a quality rubber part that can handle high temperatures and conduct electricity, there’s a good chance this material is right for you. Potential conductive silicone parts include:

Conductive gasketing
Low-end shielding
ESD protection
Military-grade elastomers
Ventilation panels
Conductive sheets
Gap fillers

Whether you need a conductive rubber part or some other option, it’s important to invest in the right solution for your application. The problem is it isn’t necessarily easy to figure out which solution gives you the most value for your money. That’s where Timco can help. We work closely with businesses to identify and supply the best, most cost-effective rubber and plastic parts based o your exact requirements.

Ready to invest in the perfect plastic or rubber parts for your business? It all starts with a conversation with one of our experts. Give us a call at 800-969-6242 or contact us online to talk to one of our experts about the parts you need.