I. Stern GPPS-020 General Purpose Crystal Polystyrene

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I. Stern GPPS-020 General Purpose Crystal Polystyrene (discontinued **)
Categories:	Polymer; Thermoplastic; Polystyrene (PS); Polystyrene, Transparent Grade
Material Notes:	Features: High Strength Grade High Flow, High Toughness Excellent Processability Applications Injection Molding Agency Ratings FDA Title 21 CFR 177.1640 UL File E185934 Information provided by I. Stern & Co. Inc. I. Stern & Co. Inc. has been acquired by Ravago.
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Physical Properties	Metric	English	Comments

Melt Flow	20 g/10 min	20 g/10 min	ASTM D1238

Mechanical Properties	Metric	English	Comments
Tensile Strength, Yield	43.1 MPa	6250 psi	ASTM D638
Elongation at Break	2.0 %	2.0 %	ASTM D638
Flexural Strength	71.7 MPa	10400 psi	ASTM D790
Flexural Modulus	2.94 GPa	427 ksi	ASTM D790
Izod Impact, Notched	0.180 J/cm	0.337 ft-lb/in	ASTM D256

Thermal Properties	Metric	English	Comments
Deflection Temperature at 1.8 MPa (264 psi)	77.8 °C	172 °F	ASTM D648
Vicat Softening Point	96.1 °C	205 °F	ASTM D1525

Compliance Properties	Metric	English	Comments
FDA	Yes	Yes	See notes for details.

**
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