Supreme Petrochem SH 2157 High Impact Polystyrene

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Supreme Petrochem SH 2157 High Impact Polystyrene
Categories:	Polymer; Thermoplastic; Polystyrene (PS); Polystyrene, Impact Modified
Material Notes:	Characteristics Excellent ESCR properties Good formability Processing Extrusion Applications Refrigerator door and cabinet liners Dairy containers Ice cream cups, plates and bowls Material Status: Commercial : Active Agency Ratings: FDA 21 CFR 177.1640, UL file E185934 Information provided by Supreme Petrochem LTD
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Physical Properties	Metric	English	Comments

Specific Gravity	1.03 g/cc	1.03 g/cc	ASTM D792
Melt Flow	4.0 g/10 min @Load 5.00 kg, Temperature 200 °C	4.0 g/10 min @Load 11.0 lb, Temperature 392 °F	ASTM D1238

Mechanical Properties	Metric	English	Comments
Tensile Strength at Break	19.6 MPa	2840 psi	50 mm/min; ASTM D638
Elongation at Break	50 %	50 %	50 mm/min; ASTM D638
Flexural Strength	34.3 MPa @Thickness 3.20 mm	4970 psi @Thickness 0.126 in	ASTM D790
Flexural Modulus	1.47 GPa @Thickness 3.20 mm	213 ksi @Thickness 0.126 in	ASTM D790
Izod Impact, Notched	1.10 J/cm @Thickness 3.20 mm	2.06 ft-lb/in @Thickness 0.126 in	ASTM D256

Thermal Properties	Metric	English	Comments
Deflection Temperature at 1.8 MPa (264 psi)	76.0 °C	169 °F	ASTM D648
Vicat Softening Point	98.0 °C	208 °F	1kg load; 120°C/h; ASTM D1525
Flammability, UL94	HB @Thickness 1.60 mm	HB @Thickness 0.0630 in

Processing Properties	Metric	English	Comments
Melt Temperature	180 - 260 °C	356 - 500 °F
Mold Temperature	40.0 - 60.0 °C	104 - 140 °F

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

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PSUP12 / 69444

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