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Calcium Carbonate filled Polystyrene filler masterbatch


GEMASTIREN series are 60% to 80% Calcium carbonate (CaCO3) filled
Polystyrene (HIPS) compounds. GEMASTIREN series are used in thermoforming and injection moulding applications. 


Gemastiren series are significantly lowers raw material overhads and are 80% more environmental friendly. Gemastiren series are widely used in the manufacture of injection moulded products, extrusion products, thermoforming applications.
Thermoforming (Cups, plates)
XPS sheet





  • PS sheets
  • PS thermoforming
  • Cups, plates
  • Injection moulding applications




  • Significantly lowers raw material overheads
  • Upto 80% more environmentally friendly
  • Reduces energy consumption