SAN plastic - Styrene-acrylonitrile copolymer

SAN polymer, with the chemical name styrene-acrylonitrile copolymer, is a versatile plastic that is characterised above all by its excellent transparency and chemical resistance. In addition, it has high stiffness and good dimensional stability which allow it to be used in demanding environments.

SAN plastic components can be used with or without further surface treatment in visible areas, such as in the interior of vehicles. The transparency of the polymer is particularly effective in combination with fibre reinforcement, which makes it possible to produce high quality components with excellent surfaces that also meet the highest visual demands.

Manufactured SAN products

 The polymer SAN is offered by Ensinger in the form of semi-pregs, prepregs and organic sheets.


SAN plastic material is characterised above all by its exceptional surface quality. A Composite made of the styrene-based SAN plastic material has excellent gloss properties and can be painted without further surface treatment.

Further advantageous properties of SAN copolymer:

  • Very low shrinkage 
  • High structural rigidity (in combination with glass, carbon or natural fibres)
  • High impact strength (in combination with glass, carbon or natural fibres)

SAN Styrene - acrylonitrile copolymer - application examples

  • Automotive,  e. g. vehicle interiors