General purpose polystyrene is produced by polymerization of the monomer styrene. It is a transparent solid product made from 2 to 5 mm pellets. More elastic, GPPS or crystal-clear polystyrene, is fully transparent, yet more fragile. It is widely used in food packaging applications or jewel cases.

General purpose polystyrene is extremely versatile, and its relatively low cost makes it ideal for a wide range of applications.

Property GPPS Units Test Method ISO Value
Density g/cm³ 1183 1.06
Yield stress mPa 527-2/1B/20 35
Tensile strain at break % 527 1.5
Izod notched impact strength 23 °C kJ/ m² 180 1.9
Izod notched impact strength -30 °C kJ/ m² 180
Heat deflection temperature (HDT) 1.80mPa °C 75-2Ae 76
Vicat softening temperature 50H/50 °C °C 306/B50 79
Flammability UL94 HB

All above apply to thermoplastics immediately after extrusion, with no aging effect.


  • Transparent, glossy and clear
  • Stiffness
  • Low shrinkage
  • Material compatible with food contact
  • Very light
  • Good machinability
  • Wide selection of patterns
  • Exceptional thermoforming characteristics
  • Easy to print and paint on


  • Packaging
  • Decoration in stores and merchandising elements
  • Thermoforming, fabricating, printing
  • Disposable, eggs boxes, vending cups and cutlery item
  • Housewares
  • Food containers
  • Office stationery
  • IT equipment
  • Cosmetic boxes, clear boxes and enclosures
  • Lamp shield
  • XPS boards
  • PS foam products


  • Food industry
  • Cosmetic industry
  • Electronic industry
  • Merchandising
  • Manufacturing
  • Advertising


Basic colors are available.
Custom colors available upon request; minimum quantity apply.



Different textures to choose from:





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