Polyacrylate (ACM)

- Sep 02, 2017-

General Information
ASTM D2000
SAE J 200 Codes DF, DH, EH
Relative Cost Medium-high

15°~150°C     Special Compound        -40°~175°C
5°~300°F        Special Compound        -40°~345°F


Primary Uses 

  • Automotive transmissions

  • Automotive steering systems


Performs Well in…

  • Mineral oils (transmission and steering fluids)

  • Ozone, weathering, hot air


Doesn’t Perform Well in…

  • Alcohol

  • Aromatic hydrocarbons

  • Chlorinated hydrocarbons

  • Acids

  • Alkalis

  • Amines

  • Brake fluids

  • Hot water and steam


Description
ACM or simply acrylate rubber consists of a polymerized ester and a curing monomer.
With excellent resistance to hot oil, automatic transmission and Type A power steering fluids, the greatest use for ACM is found in automobile manufacture, where O-rings of this material are employed to seal components of automatic transmission and power steering systems.
ACM has better resistance to high heat and oil than NBR. ACM also shows excellent resistance to ozone, weathering and hot air.


Application Avantages 

  • Petroleum fuel and oil resistnace

  • Resists flex cracking

  • Good ozone resistance

  • Good heat resistance


Limitations

  • Poor compression set performance relative to NBR

  • Lesser water resistance and low temperature performance than some other elastomers

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