Polystyrene

Material Injection Moulding Injection Moulding Mould Linear Specific Gravity Temperature °C Pressure kg/cm2 Shrinkage% mm /mm Unfilled Free Flowing General Purpose Heat 0.1 - 0.6 [C] Resistant 160 - 250 700 - 2100 0.2 - 0.6 [I] 1.04 - 1.09 Impact Resistant high Impact Medium Impact 175 - 300 700 - 2100 0.2 - 0.6 1.04 - 1.10 Special Heat and Chemical Resistant Type 175 - 350 700 - 2100 0.1 - 0.8 1.04 - 1.10 20-30% Glass Filled 225 - 310 1050 - 2800 0.1-0.2 1.2 - 1.33 Styrene Acrylonitrile Copolymer Unfilled 190 - 290 700 - 2310 0.2 - 0.7 1.075 - 1.100