American Polymers API 500 Polystyrene

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American Polymers API 500 Polystyrene
Categories:	Polymer; Thermoplastic; Polystyrene (PS); Polystyrene, Heat Resistant Grade
Material Notes:	API 500 is a heat resistant grade of impact polystyrene. It has superior heat resistance, good impact resistance and easy colorability. Applications: API 500 is used in housewares, toys, containers, displays and appliance parts. Information provided by American Polymers, Inc.
Key Words:	PS
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Physical Properties	Metric	English	Comments

Density	1.04 g/cc	0.0376 lb/in³	ASTM D792
Melt Flow	4.0 g/10 min	4.0 g/10 min	Condition G; ASTM D1238

Mechanical Properties	Metric	English	Comments
Hardness, Rockwell L	40	40	ASTM D785
Tensile Strength, Ultimate	36.5 MPa	5300 psi	ASTM D638
Elongation at Break	45 %	45 %	ASTM D638
Tensile Modulus	1.79 GPa	260 ksi	ASTM D638
Flexural Modulus	1.79 GPa	260 ksi	ASTM D790
Izod Impact, Notched	0.641 J/cm @Thickness 3.17 mm	1.20 ft-lb/in @Thickness 0.125 in	injection molded sample; ASTM D256

Thermal Properties	Metric	English	Comments
Deflection Temperature at 1.8 MPa (264 psi)	88.3 °C	191 °F	Annealed; ASTM D648
Vicat Softening Point	98.9 °C	210 °F	ASTM D1525

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