Polyacrylate
ASTM D1418, ISO 1629 Designation: ACM
ASTM D2000, SAE J200 Type/Class: DH, DF
Standard Color: Black
Trade Name:
- HyTemp® (Zeon Chemicals L.P.)
Relative Cost: Moderate
General Temperature Range: 0° to +350° F
Polyacrylate is a copolymer (ethyl acrylate) with exceptional resistance to petroleum fuels and oils. The automotive industry uses polyacrylate O-rings as seals in automatic transmissions and power steering designs. Resistant to flex cracking, polyacrylate also resists damage from oxygen, sunlight, and ozone (due to main chain saturation). Though it is marginally more resistant to hot air than nitrile, polyacrylate falls short in strength and compression set resistance, as well as in resistance to water and low temperatures.
ACM performs well in:
- Automatic transmission fluid
- Hot oils
- Type A power steering fluid
ACM does not perform well in:
- Alcohol
- Alkalies
- Brake fluids
- Glycols
- Hydrocarbons
