Physical Properties for High Impact Polystyrene Sheet

High-Impact Polystyrene

Properties	Test Method	Value	Unit
Specific Gravity	ASTM D 792	1.04
Melt Flow	ASTM D 1238	2.5	g/10min
Tensile @ Yield	ASTM D 638	2,900	psi
Tensile Modulus	ASTM D 638	275,000	psi
Elongation @ Break	ASTM D 638	70	%
Flexural Modulus	ASTM D 790	300,000	psi
Notched Izod @ 73°F	ASTM D 256	2.1	ft/lb/in
HDT @ 264 psi	ASTM D 648	183	°F
Vicat Softening Point	ASTM D 1525	210	°F

Complies with UL 94 HB at thickness > 0.039"

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Title: Physical Properties for High Impact Polystyrene Sheet
Description: Physical, Mechanical, and Thermal Typical Properties.
Published: 1/23/2009
Last Edited: 1/9/2023

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