General Sealing Products / Solid Rubber Compound Grades

306 Ethylene Propylene & Ethylene Propylene Diene Rubber (EPM, EPDM)

ASTM D-2000
Classification: CA, DA

Custom Grades including MilSpec, Def STAN, NSN, AS & DTD available. Contact us for your unique requirements.

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Temperature Range:

Sulphur Cured:    -50°C to +120°C (-60°F to +250°F)

Peroxide Cured:    -50° C to +150°C (-60°F to +300°F)


Ethylene propylene rubber is an elastomer prepared from ethylene and propylene monomers (ethylene propylene copolymer) and at times with an amount of a third monomer (ethylene propylene terpolymers).

EPM and EPDM have a great acceptance in the sealing world because of its excellent resistance to heat, water and steam, alkali, mild acidic and oxygenated solvents, ozone, and sunlight. These compounds also withstand the effect of brake fluids and Skydrol and other phosphate ester-based hydraulic fluids. EPDM compounds are not recommended for gasoline, petroleum oil and grease, or hydrocarbon environments.

Special EPDM compounds have good resistance to steam.


EPDM Sulphur cured 

Inexpensive material for normal use, maximum temperature of up to +120°C (+250°F).

EPDM Peroxide cured

For hot water, vapor, alcohols, ketones, engine coolants, organic and inorganic acids and bases. Not resistant to mineral oils. For maximum temperatures of up to +150°C (+300°F).