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Polystyrene is a colorless, hard plastic with limited flexibility. It can be easily cast into molds with fine details. The advantages of PS include and not limited to bright surface, transparent, light in weight and competitive pricing.
PS mostly applies on household appliances, office decoration, packaging, CD and cassette cases. Since PS is transparent, to transform PS into various colors can be easily accomplished.
Gin Wei’s PS is suitable to mix with colorant for colorful final products. |
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Typical Characteristics
PS, POLYREX® PG-33
Properties |
Test Method |
Test Condition |
Unit |
PS |
Tensile Strength |
ASTM D638 |
1/8”,6 mm/min |
Kg/cm2 (lb/in2 ) |
460(6530) |
Tensile Elongation |
ASTM D638 |
1/8”,6 mm/min |
% |
2.0 |
Flexural Strength |
ASTM D790 |
1/4”,2.8 mm/min |
Kg/cm2 (lb/in2 ) |
670(9510) |
Flexural Modulus |
ASTM D790 |
1/4”,2.8 mm/min |
Kg/cm2 (lb/in2 ) |
31000(440000) |
Izod Impact Strength |
ASTM D256
(Notched) |
1/4”,23℃
1/8”,23℃ |
Kg-cm/cm(ft-lb/in)
Kg-cm/cm(ft-lb/in) |
1.6(0.29)
1.7(0.31) |
Melt Flow Index |
ASTM D1238 |
200℃,5Kg |
g/10min |
8.0 |
Hardness |
ASTM D785 |
1/4” |
M Scale |
77 |
Specific Gravity |
ASTM D792 |
23℃ |
- |
1.05 |
Vicat Softening Temp. |
ASTM D1525 |
1/8”,50℃/hr |
℃(℉) |
96(204) |
Heat Distortion Temp. |
ASTM D648 |
1/4”,120℃/hr |
℃(℉) |
79(174) |
Flammability |
UL94 |
- |
- |
1/16”HB |
The data are intended as general guide for prime material only
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