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
Automotive steering systems
Performs Well in…
Mineral oils (transmission and steering fluids)
Ozone, weathering, hot air
Doesn’t Perform Well in…
Hot water and steam
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.
Petroleum fuel and oil resistnace
Resists flex cracking
Good ozone resistance
Good heat resistance
Poor compression set performance relative to NBR
Lesser water resistance and low temperature performance than some other elastomers