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. ​


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

Main Features

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

Target industries

Technical details

  • Mechanical properties
    Mechanical propertiesValueUnitParameterNorm
    Modulus of elasticity
    (tensile test)
    4200MPa1mm/minDIN EN ISO 527-2
    Tensile strength51MPa50mm/minDIN EN ISO 527-2
    Tensile strength at yield51MPa50mm/minDIN EN ISO 527-2
    Elongation at yield9%50mm/minDIN EN ISO 527-2
    Elongation at break12%50mm/minDIN EN ISO 527-2
    Flexural strength88MPa2mm/min, 10 NDIN EN ISO 178
    Modulus of elasticity
    (flexural test)
    4100MPa2mm/min, 10 NDIN EN ISO 178
    Compression strength23/39/74MPa1% / 2% / 5%EN ISO 604
    Compression modulus3600MPa5mm/min, 10 NEN ISO 604
    Impact strength (Charpy)36kJ/m2max. 7,5JDIN EN ISO 179-1eU
    Ball indentation hardness180MPaISO 2039-1
  • Thermal properties
    Thermal propertiesValueUnitParameterNorm
    Glass transition temperature-60CDIN EN ISO 11357
    Melting temperature170CDIN EN ISO 11357
    Service temperature140Cshort termNN
    Service temperature100Clong termNN
    Thermal expansion (CLTE)810-5*1/K23-60°C, long.DIN EN ISO 11359-1;2
    Thermal expansion (CLTE)810-5*1/K23-100°C, long.DIN EN ISO 11359-1;2
    Thermal conductivity0.47W/(k*m)ISO 22007-4:2008
    Specific heat1.2J/(g*K)ISO 22007-4:2008
  • Electrical properties
    Electrical propertiesValueUnitParameterNorm
    surface resistivity1014ODIN IEC 60093
    volume resistivity1014O*cmDIN IEC 60093
  • Other properties
    Other propertiesValueUnitParameterNorm
    Water absorption0.2%24h / 96h (23°C)DIN EN ISO 62
    Resistance to hot water/ bases(+)--
    Resistance to weathering---
    Flammability (UL94)HB-corresponding toDIN IEC 60695-11-10;

Stock program