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Materials and product development

PS, Polystyrene

Polystyrene is a clear, colourless, hard and rigid thermoplastic. Polystyrene softens at 100ºC and has a density of 1.05 g/cubic centimetre. The benefits of polystyrene plastic include hardness and rigidity, low shape shrinkage, low water absorption, good insulating characteristics and a relatively low price. However, it is brittle and sensitive to UV light, has poor chemical durability and has a somewhat low softening temperature. PS also has a low resistance to oils and solvents.


  • Hard and rigid material
  • Unlimited dyeing potential
  • Available in various levels of quality
  • Low water absorption
  • Good electrical insulation characteristics
  • Low formwork drying shrinkage
  • Low price


  • Brittle
  • Low softening temperature
  • Tendency to form micro-stress fissures
  • Low resistance to oils and solvents
  • Yellows and becomes brittle outdoors (UV radiation)



Colouring options:


Common applications:

Packaging, disposables (cups, spoons, etc.), household items, cellular plastic, etc.

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