Acrylic rubber, known by the chemical name alkyl acrylate copolymer (ACM) or the tradename HyTemp, is a type of rubber that has outstanding resistance to hot oil and oxidation. It belongs to specialty rubbers. It has a continuous working temperature of 150 °C (302 °F) and an intermittent limit of 180 °C (356 °F). ACM is polar and doesn't contain unsaturation. It is resistant to ozone and has low permeability to gases.[1] Its disadvantage is its low resistance to moisture, acids, and bases. It should not be used in temperatures below −10 °C (14 °F).

It is commonly used in automotive transmissions and hoses.[2] It is also used in shaft seals, adhesives, beltings, gaskets and O-rings.[3][4] It is used in vibration damping mounts due to the damping properties.[1]


  1. ^ a b Kothandaraman (1 January 2008). Rubber Materials. Ane Books India. p. 68. ISBN 978-81-8052-224-6. Retrieved 8 July 2012.
  2. ^ Rubber selection - A guide to outline properties, retrieved 2008-12-25.
  3. ^ Tony Whelan (1994). Polymer Technology Dictionary. Springer. p. 13. ISBN 978-0-412-58180-9. Retrieved 8 July 2012.
  4. ^ Alan N. Gent (2001). Engineering With Rubber: How to Design Rubber Components. Hanser Verlag. p. 18. ISBN 978-1-56990-299-8. Retrieved 8 July 2012.