
HPMs – High-performance materials
PMP
Polymethylpentene is a strong, clear amorphous thermoplastic that is similar to polypropylene. It has good chemical-resistance and electrical insulating properties. Its density is extremely low (0.83 g/cm3). We deliver PMP as plastic sheets and rods.
- Physical properties
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Value Unit Test method Specific gravity 0.83 g/cm3 DIN EN ISO 1183 Average molecular mass N/A Water absorption, 24/96 h (23 °C) – % DIN EN ISO 62 Weather-resistance poor Combustibility HB UL 94 DIN EN ISO 527-2 Food safety – - Mechanical properties
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Value Unit Test method Modulus of elasticity 1000 MPa DIN EN ISO 527-2 Tensile strength 26 MPa DIN EN ISO 527-2 Elongation at break 6 % DIN EN ISO 527-2 Tensile strength at break 67 % DIN EN ISO 527-2 Flexural modulus 800 MPa DIN EN ISO 178 Flexural strength 31 MPa DIN EN ISO 178 Compressive modulus 1000 MPa EN ISO 604 Compressive strength, 1%/2% 11/19 MPa EN ISO 604 Impact strength (Charpy) 17 kJ/m2 DIN EN ISO 179-1eU Notch impact strength (Charpy) N/A Notch impact strength (Izod) – kJ/m2 DIN EN ISO 180/2A Toughness (ball pressure) 58 MPa ISO 2039-1 Toughness (Shore D) N/A Wear-resistance N/A Coefficient of friction (against steel) N/A - Thermal properties
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Value Unit Test method Glass-transition temperature N/A Melting point N/A Operating temperature (instantaneous) +170 °C Operating temperature (continuous) 120 °C Operating temperature (minimum) N/A Thermal expansion coefficient, 23–60 °C N/A Thermal expansion coefficient, 23–100 °C N/A Specific heat capacity N/A Thermal conductivity N/A - Electrical properties
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Value Unit Test method Surface resistivity N/A Resistivity N/A Dielectric strength N/A CTI value N/A - Optical properties
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Value Unit Test method Light transmittance N/A Refractive index N/A Optical errors N/A Abrasion-resistance, 100 rotations with 500 g N/A
Additional downloads
Delivery selection | plastic sheets, plastic rods |
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Specific gravity | 0.83 g/cm3 |
Service temperature | N/A … 120 °C |
Price category | €€€ (€26–50/kg) |
Special properties
- good chemical-resistance
- low water absorption
- low density
- good electrical insulation properties
- good optical properties
- not gas-tight
Applications
electronics industry, precision engineering, laser technology, pharmaceutical industry
Standard colours
clear
Premade pieces
Commonly known brands
TECAFINE® PMP