electrically active POM-C with carbon black filler​, ESD

Acetal copolymer (POM-C) material modified by the addition of a special conductive carbon black is manufactured by Ensinger under the tradename TECAFORM AH ELS black. The addition of carbon black creates excellent electrical conductivity in the material. Carbon black filled POM-C offers excellent chemical resistance, high strength and hardness, and high abrasion resistance. In addition, carbon black filled POM-C has good UV and weather resistance. Having exceptional ​wear properties as well, makes this special acetal copolymer an ideal choice also for sliding applications. In combination with TECAFORM AH SD (POM-C with anti-static additive), these materials span the whole spectrum of conductivity from antistatic (POM SD) to static dissipative (POM esd) to conductive (POM ELS).


Chemical designation
POM-C (Polyacetal (Copolymer))
1,41 g/cm3

Main Features

  • electrically conductive
  • high strength
  • good machinability
  • difficult to bond
  • good chemical resistance
  • high toughness
  • good wear properties
  • good UV and weather resistance

Target industries

Technical details

  • Mechanical properties
    Mechanical propertiesValueUnitParameterNorm
    Modulus of elasticity
    (tensile test)
    1800MPa1mm/minDIN EN ISO 527-2
    Tensile strength42MPa50mm/minDIN EN ISO 527-2
    Tensile strength at yield42MPa50mm/minDIN EN ISO 527-2
    Elongation at yield11%50mm/minDIN EN ISO 527-2
    Elongation at break (tensile test)11%50mm/minDIN EN ISO 527-2
    Flexural strength56MPa2mm/min, 10 NDIN EN ISO 178
    Modulus of elasticity
    (flexural test)
    1500MPa2mm/min, 10 NDIN EN ISO 178
    Compression strength16/25/45MPa1% / 2% / 5%EN ISO 604
    Compression modulus1500MPa5mm/min, 10 NEN ISO 604
    Impact strength (Charpy)74kJ/m2max. 7,5JDIN EN ISO 179-1eU
    Ball indentation hardness96MPaISO 2039-1
  • Thermal properties
    Thermal propertiesValueUnitParameterNorm
    Glass transition temperature-60CDIN EN ISO 11357
    Melting temperature169CDIN EN ISO 11357
    Service temperature140Cshort termNN
    Service temperature100Clong termNN
    Thermal expansion (CLTE)1310-5*1/K23-60°C, long.DIN EN ISO 11359-1;2
    Thermal expansion (CLTE)1410-5*1/K23-100°C, long.DIN EN ISO 11359-1;2
    Thermal conductivity0.46W/(k*m)ISO 22007-4:2008
    Specific heat1.3J/(g*K)ISO 22007-4:2008
    Relative temperature index (RTI)90CImpactUL 746B
  • Electrical properties
    Electrical propertiesValueUnitParameterNorm
    volume resistivity103 - 105O*cmConductive rubber, 23°C, 12% r.h.DIN EN 61340-2-3
    surface resistivity102 - 104OConductive rubber, 23°C, 12% r.h.DIN EN 61340-2-3
  • Other properties
    Other propertiesValueUnitParameterNorm
    Water absorption0.2%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