ACM Polyacrylate Rubber | Acrylate Rubber | Seal & Design

ACM Polyacrylate       ASTM D 2000, SAE J200 Type/Class: DF

General Characteristics

ACM or simply acrylate rubber consists of a polymerized ester and a curing monomer. Ethyl acrylate rubber has a good resistance to heat and mineral oil; on the other hand butyl acrylate has a better cold flexibility. Polyacrylate has a good resistance to mineral oil, oxygen and ozone even at high temperatures. The water compatibility and cold flexibility of ACM are significantly worse than with NBR.

Temperature Properties

Heat Heat Resistance Shortened lifetime up to approximately 350°F (177°C).
Cold Cold Flexibility Down to approximately –5°F (–21°C).


Chemical Resistance Chemical Resistance
  • Mineral oil (engine, gear box, ATF oil)
  • Ozone, aging, and weather resistance
Not compatible NOT compatible
  • Glycol based brake fluid
  • Aromatics and chlorinated hydrocarbons
  • Hot water, steam
  • Acids, alkalis, amines

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