Alphamethylstyrene Acrilonitrile (AMSAN)

Alphamethylstyrene Acrylonitrile (AMSAN) is styrene acrylonitrile that is modified to provide for higher temperature resistance. Key characteristics of AMSAN are outstanding heat resistance, very good mechanical properties, good surface appearance, and excellent dimensional stability. AMSAN can be used alone to produce parts by injection molding or extrusion and it is also commonly used as a modifier for ABS and PVC to improve heat resistance. Typica applications include automotive parts and polymer modification.


  • Excellent heat resistance
  • Very good weather ability resistance
  • Very good surface appearance
  • Good chemical resistance
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