TECAFORM AD AF natural

POM-H with PTFE

TECAFORM AD AF natural is a POM homopolymer with special PTFE fibres designed to optimize the material's sliding friction properties. The fibres are homogenously distributed in the acetal material, and results in an improved slide-friction coefficient and abrasion resistance, coupled with minimal susceptibility to stick-slip effects. Furthermore, the POM-H AF provides good creep strength and extremely good dimensional stability.

Facts

Chemical designation
POM-H (Polyacetal (Homopolymer))
Colour
dark brown
Density
1,49 g/cm3

Main Features

  • good slide and wear properties
  • high strength
  • electrically insulating
  • high toughness
  • good machinability
  • good chemical resistance
  • difficult to bond
  • not hot water resistant over 60°C

Target industries

Technical details


  • Mechanical properties
    Mechanical propertiesValueUnitParameterNorm
    Modulus of elasticity
    (flexural test)
    3000MPa2mm/min, 10 NDIN EN ISO 178
    Impact strength (Charpy)n.b.kJ/m2max. 7,5JDIN EN ISO 179-1eU
    Flexural strength85MPa2mm/min, 10 NDIN EN ISO 178
    Compression modulus2400MPa5mm/min, 10 NEN ISO 604
    Compression strength19/33/67MPa1% / 2% / 5%EN ISO 604
    Ball indentation hardness166MPaISO 2039-1
    Notched impact strength (Charpy)25kJ/m2max. 7,5JDIN EN ISO 179-1eA
    Tensile strength53MPa50mm/minDIN EN ISO 527-2
    Tensile strength at yield53MPa50mm/minDIN EN ISO 527-2
    Modulus of elasticity
    (tensile test)
    3000MPa1mm/minDIN EN ISO 527-2
    Elongation at yield8%50mm/minDIN EN ISO 527-2
    Elongation at break8%50mm/minDIN EN ISO 527-2
  • Thermal properties
    Thermal propertiesValueUnitParameterNorm
    Heat distortion temperature141CHDT, Method AISO-R 75 Method A
    Service temperature150Cshort termNN
    Service temperature110Clong termNN
    Melting temperature179CDIN EN ISO 11357
    Glass transition temperature-60CDIN EN ISO 11357
    Thermal expansion (CLTE)1210-5*1/K23-60°C, long.DIN EN ISO 11359-1;2
    Thermal expansion (CLTE)1310-5*1/K23-100°C, long.DIN EN ISO 11359-1;2
    Specific heat1.3J/(g*K)ISO 22007-4:2008
    Thermal conductivity0.46W/(k*m)ISO 22007-4:2008
  • Electrical properties
    Electrical propertiesValueUnitParameterNorm
    surface resistivity1014ODIN IEC 60093
  • Other properties
    Other propertiesValueUnitParameterNorm
    Water absorption0.1%24h / 96h (23°C)DIN EN ISO 62
    Flammability (UL94)HB-corresponding toDIN IEC 60695-11-10;
    Resistance to hot water/ bases---
    Resistance to weathering--NN

Stock program