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.
Both o-rings and gaskets can be made from Polyacrylate materials.
Names: Polyacrylate, ACM, Acrylate
|ASTM D1418 Designation||ACM|
|ASTM D2000/SAE J200 Type, Class||DH, DF|
|Hardness (Shore A)||40-90|
|Standard Min Temp.||-25°F (-31°C)|
|Max Temp.||300°F (148°C)|
- Chemical Resistance
- Mineral oil (engine, gear box, ATF oil)
- Ozone, aging, and weather resistance
- NOT compatible
- Glycol based brake fluid
- Aromatics and chlorinated hydrocarbons
- Hot water, steam
- Acids, alkalis, amines
Disclaimer: These are general guidelines only. All materials should be tested in your application.