Supreme Petrochem SP 256 Toughened Polystyrene

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Supreme Petrochem SP 256 Toughened Polystyrene
Categories:	Polymer; Thermoplastic; Polystyrene (PS); Polystyrene, Impact Modified
Material Notes:	Characteristics Superior flexibility Good ball drop strength Excellent clarity Easy flow Processing Injection molding Applications Transparent hangers Stationery items like pen barrels, geometric instruments Medical products Appliance parts Toys and fashion accessories Caps for spray cans Material Status: Commercial : Active Agency Ratings: FDA 21 CFR 177.1640 Information provided by Supreme Petrochem LTD
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Physical Properties	Metric	English	Comments

Specific Gravity	1.02 g/cc	1.02 g/cc	ASTM D792
Melt Flow	10 g/10 min @Load 5.00 kg, Temperature 200 °C	10 g/10 min @Load 11.0 lb, Temperature 392 °F	ASTM D1238

Mechanical Properties	Metric	English	Comments
Tensile Strength at Break	34.3 MPa	4970 psi	50 mm/min; ASTM D638
Elongation at Break	10 %	10 %	50 mm/min; ASTM D638
Flexural Strength	46.1 MPa @Thickness 3.20 mm	6690 psi @Thickness 0.126 in	ASTM D790
Flexural Modulus	1.72 GPa @Thickness 3.20 mm	249 ksi @Thickness 0.126 in	ASTM D790
Izod Impact, Notched	2.75 J/cm @Thickness 3.20 mm	5.15 ft-lb/in @Thickness 0.126 in	ASTM D256
Izod Impact, Unnotched	2.75 J/cm @Thickness 3.20 mm	5.15 ft-lb/in @Thickness 0.126 in	ASTM D256

Thermal Properties	Metric	English	Comments
Deflection Temperature at 1.8 MPa (264 psi)	71.0 °C	160 °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

Optical Properties	Metric	English	Comments
Haze	1.0 % @Thickness 1.00 mm	1.0 % @Thickness 0.0394 in	SPL test method
Transmission, Visible	88 % @Thickness 1.00 mm	88 % @Thickness 0.0394 in	SPL test method

Processing Properties	Metric	English	Comments
Melt Temperature	<= 220 °C	<= 428 °F
Mold Temperature	40.0 - 50.0 °C	104 - 122 °F

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

Some of the values displayed above may have been converted from their original units and/or rounded in order to display the information in a consistent format. Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as raw conversions to equivalent units. We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding error. We also ask that you refer to MatWeb's terms of use regarding this information. Click here to view all the property values for this datasheet as they were originally entered into MatWeb.

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PSUP29 / 69461

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