TECAFORM AD AF natural

POM-H with PTFE

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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

mechanical engineering
electronics
food technology
automotive industry
aircraft and aerospace technology

Downloads

Datasheet (PDF)
Product handling (PDF)

Technical details

  • product-technical-detail-collapse-item-0-lvl-1
    Mechanical properties Value Unit Parameter Norm
    Modulus of elasticity
    (tensile test)    		 3000 MPa 1mm/min DIN EN ISO 527-2
    Tensile strength 53 MPa 50mm/min DIN EN ISO 527-2
    Tensile strength at yield 53 MPa 50mm/min DIN EN ISO 527-2
    Elongation at yield (tensile test) 8 % 50mm/min DIN EN ISO 527-2
    Elongation at break (tensile test) 8 % 50mm/min DIN EN ISO 527-2
    Flexural strength 85 MPa 2mm/min, 10 N DIN EN ISO 178
    Modulus of elasticity
    (flexural test)    		 3000 MPa 2mm/min, 10 N DIN EN ISO 178
    Compression modulus 2400 MPa 5mm/min, 10 N EN ISO 604
    Compression strength 19/33/67 MPa 1% / 2% / 5% EN ISO 604
    Impact strength (Charpy) n.b. kJ/m2 max. 7,5J DIN EN ISO 179-1eU
    Notched impact strength (Charpy) 25 kJ/m2 max. 7,5J DIN EN ISO 179-1eA
    Shore hardness 81 D DIN EN ISO 868
  • product-technical-detail-collapse-item-1-lvl-1
    Thermal properties Value Unit Parameter Norm
    Glass transition temperature -60 C DIN EN ISO 11357
    Melting temperature 179 C DIN EN ISO 11357
    Heat distortion temperature 141 C HDT, Method A ISO-R 75 Method A
    Thermal conductivity 0.46 W/(k*m) ISO 22007-4:2008
    Specific heat 1.3 J/(g*K) ISO 22007-4:2008
    Service temperature 150 C short term NN
    Service temperature 110 C long term NN
    Thermal expansion (CLTE) 12 10-5*1/K 23-60°C, long. DIN EN ISO 11359-1;2
    Thermal expansion (CLTE) 13 10-5*1/K 23-100°C, long. DIN EN ISO 11359-1;2
  • product-technical-detail-collapse-item-2-lvl-1
    Electrical properties Value Unit Parameter Norm
    surface resistivity 1014 Ω -
  • product-technical-detail-collapse-item-3-lvl-1
    Other properties Value Unit Parameter Norm
    Resistance to hot water/ bases - -
    Flammability (UL94) HB corresponding to DIN IEC 60695-11-10;
    Resistance to weathering - -
    Water absorption 0.05 / 0.1 % 24h / 96h (23°C) DIN EN ISO 62

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