Polystyrene (General Purpose) GPPS

Polystyrene (General Purpose) GPPS

APPLICATIONS Toys and novelties, rigid packaging, refrigerator trays and boxes, cosmetic packs and costume jewellery, lighting diffusers, audio cassette and CD cases.

 

PROPERTIES Brittle, rigid, transparent, low shrinkage, low cost, excellent X-ray resistance, free from odour and taste, easy to process

 

PHYSICAL PROPERTIES Tensile Strength 2.30 - 3.60 N/mm² Notched Impact Strength 2.0 - 2.5 Kj/m² Thermal Coefficient of expansion 80 x 10-6 Max Cont Use Temp 70 - 85 oC Density 1.05 g/cm3

 

RESISTANCE TO CHEMICALS Dilute Acid *** variable Dilute Alkalis **** Oils and Greases *** variable Aliphatic Hydrocarbons **** Aromatic Hydrocarbons * Halogenated Hydrocarbons * Alcohols ** variable
KEY * poor ** moderate *** good **** very good