Westlake Plastics TPX® Polymethylpentene

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Westlake Plastics TPX® Polymethylpentene
Categories:	Polymer; Thermoplastic; Polymethylpentene (PMP); Polymethylpentene, Molded
Material Notes:	TPX™ Polymethylpentene (PMP) is a unique semi-crystalline thermoplastic known to have the lowest density of any commercial grade polymer available at 0.82 g/cc. Its typical color is a semi-opaque milky white, however in thinner gauges of sheet and film the material is transparent. TPX™ offers a unique combination of heat resistance and release characteristics. Because the surface tension of TPX™ is very low, the product displays excellent release and peeling characteristics. In addition, the extremely low density of TPX™ offers the potential for significant weight reduction of the final product. Applications include release films, lightweight structural parts, and hollow fibers. PMP is FDA compliant and used in many food and beverage applications. Industry: Engineering; Semiconductor and ESD Colors Available: Natural Attributes: Chemical Resistance; Dielectric Properties; Transparent Shapes: Extruded Slab; Compression Sheet; Extruded Rod; Extruded Film Information provided by Westlake Plastics.
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Physical Properties	Metric	English	Comments

Water Absorption	0.010 % @Time 86400 sec	0.010 % @Time 24.0 hour	ASTM D570

Mechanical Properties	Metric	English	Comments
Tensile Strength at Break	25.0 MPa	3630 psi	ASTM D638
Tensile Strength, Yield	29.6 MPa	4300 psi	ASTM D882
Elongation at Break	19 %	19 %	ASTM D882
Tensile Modulus	1.90 GPa	275 ksi	ASTM D882
Flexural Strength	40.0 MPa @Strain 5.0 %	5800 psi @Strain 5.0 %	ASTM D790
Flexural Modulus	1.50 GPa	217 ksi	ASTM D790
Izod Impact, Notched	0.246 J/cm	0.460 ft-lb/in	ASTM D638

Electrical Properties	Metric	English	Comments
Volume Resistivity	10160 ohm-cm	10160 ohm-cm	ASTM D257

Thermal Properties	Metric	English	Comments
Deflection Temperature at 0.46 MPa (66 psi)	127 °C	261 °F	ASTM D648

Descriptive Properties
Color	Translucent white

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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