TECAFORM AH GF25 natural

POM-C glass fibre reinforced

POM GF25 is a special glass filled acetal with 25% glass fibre reinforcement. Ensinger manufactures this POM composite under the trade name TECAFORM AH GF25. In comparison to POM-C unfilled, POM GF25 demonstrates optimised properties in a number of different areas. The properties POM GF25 exibits, makes it suitable for use in parts that are exposed to high static loads over long periods in high temperature conditions. This glass filled acetal has high mechanical strength, outstanding wear resistance, and has very high dimensional stability. In addition to this, POM GF25 also offers high electrical insulation and exceptional chemical resistance. However,​ as glass fibres tend in some cases to have a marked abrasive effect on mating surfaces, POM GF25 is less suitable for sliding applications. ​

Facts

Chemical designation
POM-C (Polyacetal (Copolymer))
Colour
white
Density
1,59 g/cm3

Main Features

  • high strength
  • good wear properties
  • good chemical resistance
  • very high stiffness
  • electrically insulating
  • difficult to bond

Target industries

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Technical details


  • product-technical-detail-collapse-item-0-lvl-1
    Mechanical properties Value Unit Parameter Norm
    Modulus of elasticity
    (tensile test)
    4200 MPa 1mm/min DIN EN ISO 527-2
    Tensile strength 51 MPa 50mm/min DIN EN ISO 527-2
    Tensile strength at yield 51 MPa 50mm/min DIN EN ISO 527-2
    Elongation at yield (tensile test) 9 % 50mm/min DIN EN ISO 527-2
    Elongation at break (tensile test) 12 % 50mm/min DIN EN ISO 527-2
    Flexural strength 88 MPa 2mm/min, 10 N DIN EN ISO 178
    Modulus of elasticity
    (flexural test)
    4100 MPa 2mm/min, 10 N DIN EN ISO 178
    Compression strength 23/39/74 MPa 1% / 2% / 5% EN ISO 604
    Compression modulus 3600 MPa 5mm/min, 10 N EN ISO 604
    Impact strength (Charpy) 36 kJ/m2 max. 7,5J DIN EN ISO 179-1eU
    Ball indentation hardness 180 MPa ISO 2039-1
  • 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 170 C DIN EN ISO 11357
    Service temperature 140 C short term NN
    Service temperature 100 C long term NN
    Thermal expansion (CLTE) 8 10-5*1/K 23-60°C, long. DIN EN ISO 11359-1;2
    Thermal expansion (CLTE) 8 10-5*1/K 23-100°C, long. DIN EN ISO 11359-1;2
    Thermal conductivity 0.47 W/(k*m) ISO 22007-4:2008
    Specific heat 1.2 J/(g*K) ISO 22007-4:2008
  • product-technical-detail-collapse-item-2-lvl-1
    Electrical properties Value Unit Parameter Norm
    surface resistivity 1014 O DIN IEC 60093
    volume resistivity 1014 O*cm DIN IEC 60093
  • product-technical-detail-collapse-item-3-lvl-1
    Other properties Value Unit Parameter Norm
    Water absorption 0.2 % 24h / 96h (23°C) DIN EN ISO 62
    Resistance to hot water/ bases (+) - -
    Resistance to weathering - - -
    Flammability (UL94) HB - corresponding to DIN IEC 60695-11-10;

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