POM-H natural

POM-H is a homopolymer acetal that is manufactured by Ensinger (using white DuPont™ Delrin® resin) under the tradename TECAFORM AD natural. This homopolymer acetal has exceptional sliding characteristics and good wear resistance properties. In comparison to POM-C, POM-H has a slightly higher density, hardness and strength due to its higher crystallinity. In addition, POM-H has good electrical insulating properties, as well as exceptional machining characteristics, making Ensinger's TECAFORM AD natural acetal one of the most versatile engineering materials available today.



Chemical designation
POM-H (Polyacetal (Homopolymer))
Alternative colours available
1,43 g/cm3

Main Features

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

Target industries

Technical details

  • Mechanical properties
    Mechanical propertiesValueUnitParameterNorm
    Modulus of elasticity
    (tensile test)
    3400MPa1mm/minDIN EN ISO 527-2
    Tensile strength79MPa50mm/minDIN EN ISO 527-2
    Tensile strength at yield79MPa50mm/minDIN EN ISO 527-2
    Elongation at yield37%50mm/minDIN EN ISO 527-2
    Elongation at break (tensile test)45%50mm/minDIN EN ISO 527-2
    Flexural strength106MPa2mm/min, 10 NDIN EN ISO 178
    Modulus of elasticity
    (flexural test)
    3600MPa2mm/min, 10 NDIN EN ISO 178
    Compression strength19/33/69MPa1% / 2% / 5%EN ISO 604
    Compression modulus2700MPa5mm/min, 10 NEN ISO 604
    Impact strength (Charpy)n.b.kJ/m2max. 7,5JDIN EN ISO 179-1eU
    Notched impact strength (Charpy)15kJ/m2max. 7,5JDIN EN ISO 179-1eA
    Ball indentation hardness185MPaISO 2039-1
  • Thermal properties
    Thermal propertiesValueUnitParameterNorm
    Glass transition temperature-60CDIN EN ISO 11357
    Melting temperature182CDIN EN ISO 11357
    Service temperature150Cshort termNN
    Service temperature110Clong termNN
    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
    Thermal conductivity0.43W/(k*m)ISO 22007-4:2008
    Specific heat1.3J/(g*K)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
    Resistance to hot water/ bases---
    Resistance to weathering--NN
    Flammability (UL94)HB-corresponding toDIN IEC 60695-11-10;

Stock program