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LITE K
semi-crystalline
Properties
Semi-crystalline thermoplastic PEEK film in amorphous form

General properties:
  • excellent resistance to radioactive gamma radiation (permeable)
  • very good chemical and hydrolysis stability
  • low moisture absorption
  • good acoustic properties
  • thermoformable
Physical properties:
  • Density (ISO1183): 1,28 g/cm³
  • Glass transition temperature (ISO11357): 143 °C
  • Melting temperature: 343 °C
Mechanical properties: (sample thickness 50 µm)
  • Tensile strength at 23°C (ISO527): 110 N/mm²
  • Tensile elongation at 23°C (ISO527): 200 %
  • Tensile modulus (ISO527): 2300 N/mm²
Electrical properties:
  • Dielectric strength (IEC243): 180 kV/mm
Thermal properties:
  • Long-term service temperature (UL746B): 220 °C
  • Flammability (UL94): 0/25 VTM/µ
  • Thermal expansion coefficient x 10³, T<Tg: 0,046 1/°K
  • Thermal conductivity x 10² (DIN52612): 25 W/mK

Typical applications

  • (thermoformed) electrical insulations
  • loudspeaker diaphragms
  • thermoplastic composites
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