SAN – Styrene Acrylonitrile

SAN is ABS without the Butadiene. It does not have the Impact Strength of ABS, but can be crystal clear. Styrene Acrylonitrile has better general chemical resistance than polystyrene and is cheaper than acrylic. It has a good combination of rigidity, strength, toughness and transparency.

Applications: Battery cases, Dials, Knobs, Switches, Lenses, Trays, Containers, Covers, Autoclavable devices, Dental & Medical light diffusers

Tensile Strength Flexural Modulus Impact Strength Max Temp. Chemical Resistance
10,000-18,000 psi 500,000-1,200,000 psi .3-3.0 ft-lb/in notched izod 140°-200° F Poor to Fair


  • Heat Resistant
  • High Clarity
  • High Flow and Rigidity
  • Dimensionally Stable


  • Low impact strength
  • High processing temps
  • Flammable-smoke generation
  • Yellows quicker than other PS

Brand Names: LNP Lubricomp, Thermocomp, LG, Lustran, Luran.