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POLYACRYLATE (ACM) RUBBER

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: PolyacrylateACMAcrylate

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)

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.

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