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Westlake Plastics

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Westlake Plastics PMP Film Made from TPX® Polymethylpentene Resin
Categories: Polymer; Film; Thermoplastic; Polymethylpentene (PMP); Polymethylpentene, Molded

Material Notes: Lowest specific gravity of any known thermoplastic. Exceptional electrical properties. Good chemical resistance. High heat resistance. Excellent acoustical properties. Transparency. FDA compliant.

TPX® is a trade name of Mitsui Plastics Inc. Information provided by Westlake Plastics.

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Physical PropertiesOriginal ValueComments
Density 0.835 g/ccASTM D792
Water Absorption 0.010 %ASTM D570; 24 hrs.
 
Mechanical PropertiesOriginal ValueComments
Tensile Strength at Break 4110 psiASTM D882
Elongation at Break 10 %ASTM D882
Tensile Modulus 280000 psiASTM D882
Flexural Modulus 210000 psiASTM D790
Tear Strength 49.0 kg(f)/cmASTM D1004
 
Electrical PropertiesOriginal ValueComments
Surface Resistance >= 1.00e+16 ohmASTM D257
Dielectric Constant 2.12
@Frequency 1000 Hz
ASTM D150
Dielectric Strength 3710 V/mil
@Thickness 0.0762 mm
ASTM D149
Dissipation Factor 0.000025
@Frequency 1000 Hz
ASTM D150
 
Thermal PropertiesOriginal ValueComments
Melting Point 455 °FDSC
Maximum Service Temperature, Air 212 °FContinuous Use
Deflection Temperature at 0.46 MPa (66 psi) 212 °FASTM D648
Flammability, UL94 HB
Oxygen Index <= 25 %ASTM D2863
 
Optical PropertiesOriginal ValueComments
Refractive Index 1.463
Haze 2.0 %ASTM D1003
 
Compliance PropertiesOriginal ValueComments
FDA Yes

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 go back to viewing the property data in MatWeb's normal format.

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