PTFE unfilled

PTFE is one of the most commonly used and important fluoropolymer materials, useful in a wide variety of applications. It is a commonly preferred material for sliding applications, and especially in environments that will expose the part to chemical stress.



Chemical designation
PTFE (Polytetrafluorethylene)
2,15 g/cm3

Main Features

  • very good electrical insulation
  • very good slide and wear properties
  • inherent flame retardant
  • continuous service temperature up to 260 °C
  • very good chemical resistance
  • good UV and weather resistance

Target industries

Technical details

  • Mechanical properties
    Mechanical propertiesValueUnitParameterNorm
    Shore hardness55-Shore DASTM D 2240
    Compression strength5MPa1% strainASTM D 695
    Elongation at break (tensile test)220%ASTM D 4894
    Tensile strength22MPaASTM D 4894
  • Thermal properties
    Thermal propertiesValueUnitParameterNorm
    Thermal expansion (CLTE)1310-5*1/K23-100°C, long.ASTM D 696
    Service temperature260Cshort term-
    Service temperature260Clong term-
    Glass transition temperature20CDIN EN ISO 11357
    Thermal conductivity0.20W/(k*m)ASTM C 177
  • Electrical properties
    Electrical propertiesValueUnitParameterNorm
    Dielectric strength80kV/mmIn air, 0.125mm thickASTM D 149
    volume resistivity1017O*cmASTM D 257
    surface resistivity1016OASTM D 257
    Dielectric constant2.1-50-109HzASTM D 150
  • Other properties
    Other propertiesValueUnitParameterNorm
    Water absorption0.01%23°CASTM D 570
    Flammability (UL94)V0-corresponding toDIN IEC 60695-11-10;

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