STYRON HI™

Identification & Functionality

Chemical Family

High-Impact Polystyrene (HIPS),

Styrenics

Polymer Name

High Impact Polystyrene (HIPS)

Technologies

Plastics

Product Families

Plastics — Parts, Shapes & Films

Features & Benefits

Labeling Claims

Food Contact Acceptable

Materials Features

Dimensional Stability,

Food Contact Acceptable,

Good Machinability,

Impact Resistance,

Low Strength

Manufacturing Capabilities

Applications & Uses

Markets

Building & Construction,

Electrical & Electronics,

Industrial

Applications

Building & Construction — Building Materials

Structural Components

Industrial — Chemical & Industrial Manufacturing

Tooling & Moldmaking

Electrical & Electronics — Parts & Components

Housings & Enclosures

Plastics & Elastomers End Uses

Covers,

Housings,

Prototyping

Properties

Color

Translucent,

White

Physical Form

Rods,

Sheets,

Slab

Mechanical Properties

	Value	Units	Test Method / Conditions
Flexural Modulus	275000	psi	ASTM D790
Flexural Strength (Yield)	5200	psi	ASTM D790
Hardness	R107	R Scale	ASTM D785
Izod Impact Strength Notched (-73°F)	ai	ftelbs/in	ASTM D256
Tensile Elongation (Break)	65	%	ASTM D638
Tensile Modulus	270000	psi	ASTM D638
Tensile Strength (Break)	3700	psi	ASTM D638
Tensile Strength (Yield)	3900	psi	ASTM D638

Typical Properties

	Value	Units	Test Method / Conditions
Specific Gravity	1.04	—	ASTM D792

Thermal Properties

	Value	Units	Test Method / Conditions
Coefficient of Thermal Expansion	5.0x10°	in/in/°F	ASTM D696
Flammability Rating (040")	HB	—	UL94
Heat Deflection Temperature (264 psi)	174	i	ASTM D648
Heat Deflection Temperature (66 psi)	192	°F	ASTM D648