ACM – Polyacrylate Rubber

Clwyd reference ACM
ASTM classification ACM
Copolymer of ethyl and butyl acrylate
Typical applications Automotive sealing applications, including seals for transmission and power steering systems
Advantages Excellent resistance to petroleum fuel and oil
Good heat resistance
Good ozone resistance
Resists flex cracking
Disadvantages Moderate water resistance
Available hardness range (Shore A) 45 – 90
Upper continuous service temp. (°C) 175
Min. temp. for sealing applications (°C) -60
Minimum non-brittle  temp.  (°C) -60
Tensile strength (up to) 20 MPa
Elongation at break (up to) 400%