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Phone: 1.800.999.1700  |  1.610.459.1000
Fax : 1.610.459.2579

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Phone : 1.800.440.0597
Fax : 1.714.632.7945

European Headquarters
Phone : + 33 (0)3 20 68 30 35
Fax : +33 (0)3 20 68 07 05

 
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PRODUCTS

Compression Molded
High Performance Films
Chemical Resistance
ECTFE
HDPE
HIPS
Kynar® 740
Propylux®
Static Control
High Performance
Medical
Engineering

  Compression Molded Products Image

high impact polystyrene

Download Datasheet (pdf 40kb) | Download MSDS (pdf 36kb)

HIPS is a low cost plastic material that is easy to machine and fabricate. HIPS is often specified for low strength structural applications when impact resistance, machinability, and low cost are required. It is frequently used machining pre-production prototypes since it has excellent dimensional stability and is easy to fabricate, paint and glue. Natural (translucent white) HIPS is FDA compliant for use in food processing applications.

The following physical property information is based on typical values of the base high impact polystyrene resin.

HIPS

Applications Include:
Machined prototypes
Low-strength structural components
Housings
Covers

Advantages of HIPS
Good impact resistance
Excellent machinability
Good dimensional stability
Excellent aesthetic qualities
Easy to paint and glue
Low cost
FDA compliant

Manufacturing Capabilities:
Rod: 1/4" to 8" diameter
Sheet: 1/8" to 4" thick

Color/Grades:
Translucent white.
(custom colors available)

*In addition to our standard capabilities, Westlake also has the ability to process custom resins in various sizes and colors with some exceptions.

 
Mechanical PropertiesTest MethodResult
 MetricEnglish
Flexural Modulus
ASTM D790
1910 MPa
277 kpsi
Flexural Strength at yield
ASTM D790
43 MPa
6.2 kpsi
Hardness-Rockwell
ASTM D785
R95 L60
R95 L60
Gardener Impact at 73 °F
ASTM D3029
160 in-lbs
Izod Impact Strength
Notched at 73 °F
ASTM D256
1.1 J/cm
2.1 ft-lb/in
Izod Impact Strength
Notched at 0°F
ASTM D256
0.6 J/cm
1.2 ft-lb/in
Tensile Elongation at break
ASTM D638
52 %
52 %
Tensile Modulus
ASTM D638
1648 MPa
239 kpsi
Tensile Strength at break
ASTM D638
24 MPa
3.5 kpsi
Tensile Strength at yield
ASTM D638
19 MPa
2.8 kpsi
 
Other PropertiesTest MethodResult
 MetricEnglish
Specific Gravity
ASTM D792
1.04
1.04
 
Thermal PropertiesTest MethodResult
 MetricEnglish
Coefficient of Thermal Expansion
ASTM D696
9.0 x 10-5 m/m/°C
5.0 x 10-5 in/in/°F
Flammability Rating-UL94 at 0.058
-
HB
HB
Heat Deflection Temp at 66 psi
ASTM D648
87 °C
189 °F
Heat Deflection Temp at 264 psi
ASTM D648
74 °C
165 °F
 
 
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