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-transparent 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.
Typical PropertiesDownload Data Sheet
|Property||Test Standard||English Units||Metric Units|
|Flexural Modulus||D790||218 kpsi||1,500 MPa|
|Flexural Strength - 5%||D790||5.8 kpsi||40 MPa|
|Izod Impact, notched||D256||0.47 ft-lb/in||0.025 kJ/m|
|Tensile Elongation @ Break||D638||19.00 %||19.00 %|
|Tensile Modulus||D638||276 kpsi||1,900 MPa|
|Tensile Strength @ Break||D638||3.6 kpsi||25 MPa|
|Tensile Strength @ Yield||D638||4.4 kpsi||30 MPa|
|HDT @ 64 psi||D648||261 °F||127 °C|
|Volume Resistivity||D257||1 x 10¹⁵ ohm-cm||1 x 10¹⁵ ohm-cm|
|*Data above is based on testing of injection molded test specimens|
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