EPDM Rubber | EPDM O-Rings | Ethylene Propylene Diene Monomer

EPDM ETHYLENE PROPYLENE       ASTM D 2000, SAE J200 Type / Class: AA, BA, CA, DA

General Characteristics

EPM is a copolymer of ethylene and propylene. Ethylenepropylene-diene rubber (EPDM) is produced using a third monomer and is particularly useful when sealing phosphate-ester hydraulic fluids and in brake systems that use fluids having a glycol base.


Temperature Properties

Heat Heat Resistance Up to 300°F (149°C) (max. 400°F (204°C) in water and/or steam).
Cold Cold Flexibility Down to approximately -70°F (–57°C).


Chemical Resistance Chemical Resistance
  • Hot water & steam up with special compounds up to 400°F (204°C)
  • Glycol based brake fluids up to 300°F (149°C)
  • Many organic and inorganic acids
  • Cleaning agents, soda and potassium alkalis
  • Phosphate-ester based hydraulic fluids (HFD-R)
  • Silicone oil and grease
  • Many polar solvents (alcohols, ketones, esters)
  • Ozone, aging and weather resistant
Not compatible NOT compatible
  • Mineral oil products (oils, greases, and fuels)

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