Seal & Design Inc. | Seal & Gasket Manufacturer | Custom Seals | Compounds - Polyacrylate (ACM)

Polyacrylate (ACM)

Polyacrylate MaterialACM 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

Compound Info
ASTM D1418 DesignationACM
ASTM D2000/SAE J200 Type, ClassDH, DF
Hardness (Shore A)40-90
Colorblack, green
Thermal Properties
Standard Min Temp.-25°F (-31°C)
Max Temp.300°F (148°C)

Compatibility

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

Disclaimer: These are general guidelines only. All materials should be tested in your application.