EPDM Gasket
EPDM, or ethylene-propylene-diene monomer is a type of synthetic rubber that is used in many applications.
EPDM possesses superior mechanical properties. It has a tensile strength ranging from 7 to 21 MPa, making it stronger than silicone, which has a tensile strength of 5 and 10 APa; nitrile, which is between 12 and 15 MPa; and neoprene, which is between 5 and 8 MPa.
Material Benefits
EPDM rubber gaskets offer a variety of benefits when compared to other rubber gasket materials. They can withstand harsh environmental conditions and are designed to provide reliable, long-lasting sealing capabilities over a wide range of temperatures from -60° F to 300° F.
EPDM gaskets offer good electrical insulation and are highly resistant to wear, ultraviolet light, aging, wind, weather, and ozone. They are also color-stable and won’t stain mating surfaces.
EPDM Gasket Applications
EPDM is a strong, durable, and cost-effective option that offers superior performance for use in many applications, including:
- Outdoor. Since EPDM gaskets are able to withstand extreme temperature fluctuations, water, and UV rays, they are ideal for use in outdoor applications.
- Electrical. The material’s high electrical resistance makes EPDM gaskets suitable for many electrical installations.
- Open Joints. EPDM gaskets have a good compression set resistance, which allows for easy recovery, making it appropriate for applications where a joint may open up occasionally.
EPDM Grades
EPDM gaskets are manufactured from solid, sponge, or foam rubber materials. Each type of material has a unique molecular structure enabling EPDM gaskets to possess physical properties, such as hardness and chemical resistance, to meet the specifications of many applications. EPDM gaskets are categorized by grades such as commercial, peroxide-cured, UL 94 flame-retardant, and FDA-approved.
PDM Gasket Material Properties
Ethylene and propylene are both hydrocarbons that remain in gaseous states at room temperature. When combined, they create polymers such as polyethylene and polypropylene, which remain solid. By controlling the polymerization process and adding the proper proportion of ethylene and propylene, it is possible to create EPDM.
The process of manufacturing EPDM creates long molecular chains that give the material its enhanced elastic properties. EPDM is unique among elastomers because it remains flexible at very low temperatures and can be formulated to withstand extremely high temperatures. The material is also resistant to oxidation and the aging effects of ultraviolet light.
Typical EPDM Specifications:
Excellent resistance to UV rays and ozone. Good resistance to Anti-freeze, Synthetic Detergents, Acetone, Boric acid, Ethanol, Formaldehyde, Mercury, Potassium Sulfate, Silver Nitrate, Steam (up to 212 Fahrenheit), Saccharin. For EPDM’s gasket materials compatibility with your specific medium please contact American Seal & Packing.
Compound: EPDM
Color: Black
Weight: 1/16″ = 0.625 lbs per square foot
Durometer: 45-55 or 55-65
Temperature Range: -40°F to 212°F
Minimum Tensile: 800 PSI
Finish: Smooth
Minimum Elongation: 300%
Gauges: 1/16″, 1/8″, 3/32″, 1/4″, 3/8″, 1/2″
Widths: 36″ and 48″
PSA: Can be added
Roll Length: 25′ and 150′ Short lengths may be available
Flexibility: This medium durometer (45-55) sheet rubber offers moderate pliability and elasticity. The harder durometer variant (55-65) offers higher abrasion resistant durability, but less pliability and flexibility.
Applications: Provides outstanding resistance to weathering, ozone, and UV exposure. Gasket, bumper and general exterior applications.
Custom Cuts: In addition to hand fabrication, this product can be fabricated using laser, die, or water-jet cut. Please submit your drawings for a price quote.
EPDM Gaskets are available in 1/32″, 1/16″, 1/8″, 3/16″ and 1/4″
For more information on EPDM gasket material or to purchase an order, give the experienced staff here at American Seal & Packing a call today!
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