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1.90mm X 8.9mm Metric EPDM 70 O-ring


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Metric O-rings - Cross Section "CS" X Inside Diameter "ID"

EPDM (Ethylene Propylene, EPM)

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.

Heat resistance

  • Up to 300°F (149°C) (max. 400°F (204°C) in water and/or steam).
Cold flexibility
  • Down to approximately –70°F (–57°C).
Chemical resistance
  • Hot water and steam up to 300°F (149°C) 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 with:
  • Mineral oil products (oils, greases and fuels).