EPDM Gasket Suppliers

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What are EPDM Gaskets?

EPDM gaskets are chemically resistant and have strong electrical qualities. EPDM gaskets are rubber gaskets made of the same-named synthetic rubber.

How EPDM is Made

EPDM, a polymer, is made by causing a chemical reaction between its constituents. This chemical reaction produces a mixture of particles and clusters of massive, repeating molecules.

The chemical must be vulcanized or cured with sulfur after it has been generated. This is because the presence of diene in EPDM causes its polymer structure to change from saturated to unsaturated.

Vulcanization, which results in the production of crosslinks between the polymer chains of the molecules, is required to strengthen the rubber, which becomes more durable and less sticky after vulcanization.

Without the strength supplied by vulcanization, EPDM would be much more susceptible, break down more easily, and not last nearly as long.

Manufacturing of EPDM Gaskets

EPDM gaskets are often manufactured by die cutting. Die cutting is a cold-working procedure that involves cutting stock material using shears or other cutting tools. Cutting blades are almost entirely constructed of steel alloys like stainless steel.

Shearing and shearing-type activities are the most common sub-processes in die cutting. Shearing is the procedure that occurs when a maker uses straight cutting blades. In the meantime, if the producer uses a curved blade, the die-cutting procedure is similar to shearing.

"Dinking" is a standard die-cutting technique for making rubber gaskets of all kinds. Shears are used to cut webs of materials in this operation, called "clicking" in metallurgy.

Dinking necessitates using specific dies that are hammered or mechanically pushed into materials. Dinking dies and hollow cutters are two terms for the same thing. EPDM gaskets of diverse forms, lengths, widths, and depths are made using die cutting.

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They can be worked in various forms after being cut, including rubber foam gaskets, sealant strips, and gasket tape. A sealant strip is a closed-cell material that blocks rather than absorbs components. As a result, it's ideal for waterproofing applications.

EPDM gasket tape is also constructed of a closed-cell rubber substance, so it is ideal for sealing tight and difficult-to-reach areas.

Properties of EPDM Gasket Material

• At room temperature, ethylene and propylene are both hydrocarbons that remain gaseous. Polymers such as polyethylene and polypropylene are formed when they are mixed. EPDM may be made by regulating the polymerization process and adding the right amount of ethylene and propylene.
• EPDM is manufactured using a technique that produces long molecular chains that give the material its improved elasticity. EPDM is unique among elastomers in that it may be made to resist extremely high temperatures while remaining flexible at very low temperatures. The material is also resistant to oxidation and ultraviolet light's aging effects.
• EPDM has excellent mechanical qualities. It has a tensile strength of 7 to 21 MPa, making it stronger than silicone, which has a tensile strength of 5 to 10 MPa; nitrile, which has a tensile strength of 12 to 15 MPa; and neoprene, which has a tensile strength of 5 to 8 MPa.
• EPDM rubber gaskets are more abrasion resistant and are formulated to withstand strong chemicals like acids and alkalis. EPDM gaskets are appropriate for applications involving hydrocarbon lubricants and petroleum compounds, which cause swelling in conventional gasket materials. Its heat-resistant qualities and stability make it suited for steam applications.

Applications of EPDM Gasket

• EPDM is excellent for gaskets exposed to sunshine, water, and cold temperatures. EPDM gaskets with good compression set resistance recover well in occasional situations where a joint may open up. EPDM gaskets with strong electrical resistance may be suitable for some electrical installations.
• Silicone is a high-performance material with a wide temperature range and exceptional flexibility in the gasket industry. In many cases, however, an EPDM gasket may be more cost-effective. It has a similar temperature range and is a stronger, more lasting material.

Choosing the Proper EPDM Gasket Manufacturer

To ensure you have the most constructive outcome when purchasing EPDM gaskets from a EPDM gasket manufacturer, it is important to compare several companies using our directory of EPDM gasket manufacturers. Each EPDM gasket manufacturer has a business profile page highlighting their areas of experience and capabilities, along with a contact form to directly communicate with the manufacturer for more information or request a quote. Review each EPDM gasket business website using our proprietary website previewer to quickly learn what each company specializes in. Then, use our simple RFQ form to contact multiple companies with the same form.

Rubber is one of the most common materials used to produce gaskets and seals. Choosing the correct rubber for an application can be a difficult and time-consuming process due to the multitude of different rubber composite materials available.

We would always recommend talking to our technical team for clear advice about your specific requirements, but we hope this brief guide provides general information to assist you in choosing the appropriate rubber gasket material.

1. Determine the Operating Conditions:

• Temperature Range: Consider the minimum and maximum temperatures the gasket will encounter during operation.
• Pressure Range: Determine the pressure levels the gasket needs to withstand.
• Chemical Compatibility: Identify the chemicals or fluids the gasket will come into contact with and ensure the material is resistant to them.
• Environmental Factors: Assess the exposure to UV radiation, ozone, weathering, and other environmental conditions.

2. Understand Gasket Material Types:

• Nitrile: Suitable for applications with oils, fuels, and other petroleum-based fluids. Good resistance to compression set and abrasion.
• Neoprene: Exhibits good resistance to weathering, ozone, and moderate oil resistance. Suitable for outdoor applications.
• EPDM: Excellent weather resistance, ozone resistance, and good chemical compatibility. Often used for outdoor, automotive or food processing applications. More about EPDM Gaskets
• Silicone: Wide temperature range (-60°C to 230°C), excellent flexibility, and resistance to UV and ozone. Suitable for food-grade and high-temperature applications.
• Viton: Exceptional chemical resistance, high-temperature resistance, and suitable for applications with fuels, oils, and harsh chemicals.
• Natural Rubber: Good resilience, abrasion resistance, and elasticity. Not recommended for exposure to oils, fuels, or ozone.
• Hypalon: Completely ozone and UV resistant with excellent recovery and stability properties when used in harsh environmental conditions.
• Butyl: The blend of isobutylene and isoprene forms an impermeable seal often used in processing gases. It also has excellent thermal and anti-ageing properties.
• Insertion: Rubber and styrene-butadiene composite with a fabric reinforcement is used in many common sealing applications where water or mild chemicals are a factor.

More information on Rubber Gasket Materials and our manufacturing processes 

3. Consider Specific Application Factors:

• Food and Beverage: Choose WRAS and FDA-compliant materials such as EPDM or silicone for gaskets in food and beverage processing.
• High-Temperature Applications: Opt for materials like silicone or viton capable of withstanding elevated temperatures.
• Chemical Resistance: Select gasket materials that offer resistance to specific chemicals encountered in your application.
• Electrical Insulation: Materials with high dielectric strength, such as silicone, can be suitable for electrical enclosure gaskets.
• Sealing Performance: Evaluate the material's compression set, flexibility, and ability to maintain a seal over time.

4. Consult with our Technical Team:

• Material Specialists: Our technicians have a wealth of experience with gasket materials and can provide application-specific recommendations.

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Our highly experienced technicians can advise you on the best sheet materials and manufacturing processes for a wide range of gasket applications.

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