TECAFORM AH ELS black

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).

Facts

Chemical designation
POM-C (Polyacetal (Copolymer))
Colour
black
Density
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


  • product-technical-detail-collapse-item-0-lvl-1
    Mechanical properties Value Unit Parameter Norm
    Modulus of elasticity
    (tensile test)
    1800 MPa 1mm/min DIN EN ISO 527-2
    Tensile strength 42 MPa 50mm/min DIN EN ISO 527-2
    Tensile strength at yield 42 MPa 50mm/min DIN EN ISO 527-2
    Elongation at yield (tensile test) 11 % 50mm/min DIN EN ISO 527-2
    Elongation at break (tensile test) 11 % 50mm/min DIN EN ISO 527-2
    Flexural strength 56 MPa 2mm/min, 10 N DIN EN ISO 178
    Modulus of elasticity
    (flexural test)
    1500 MPa 2mm/min, 10 N DIN EN ISO 178
    Compression strength 16/25/45 MPa 1% / 2% / 5% EN ISO 604
    Compression modulus 1500 MPa 5mm/min, 10 N EN ISO 604
    Impact strength (Charpy) 74 kJ/m2 max. 7,5J DIN EN ISO 179-1eU
    Ball indentation hardness 96 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 169 C DIN EN ISO 11357
    Service temperature 140 C short term NN
    Service temperature 100 C long term NN
    Thermal expansion (CLTE) 13 10-5*1/K 23-60°C, long. DIN EN ISO 11359-1;2
    Thermal expansion (CLTE) 14 10-5*1/K 23-100°C, long. DIN EN ISO 11359-1;2
    Thermal conductivity 0.46 W/(k*m) ISO 22007-4:2008
    Specific heat 1.3 J/(g*K) ISO 22007-4:2008
    Relative temperature index (RTI) 90 C Impact UL 746B
  • product-technical-detail-collapse-item-2-lvl-1
    Electrical properties Value Unit Parameter Norm
    volume resistivity 103 - 105 O*cm Conductive rubber, 23°C, 12% r.h. DIN EN 61340-2-3
    surface resistivity 102 - 104 O Conductive rubber, 23°C, 12% r.h. DIN EN 61340-2-3
  • 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 (+) - NN
    Flammability (UL94) HB - corresponding to DIN IEC 60695-11-10;

Stock program