TECAPEEK ELS nano black

Electrically conductive PEEK

For applications that require a plastic with the added characteristic of electrical conductivity, Ensinger has developed PEEK ELS under the trade name TECAPEEK ELS nano black, using Victrex® PEEK 450G polymer. This material takes advantage of the addition of carbon nano tubes, which allows for a high degree of conductivity to be achieved while maintaining relatively low levels of filler content. In conjunction with the other excellent properties offered by polyaryletherketones like thermal stability, and chemical resistance, TECAPEEK ELS nano black (PEEK ELS) opens up a world of possibilities and new applications for high performance plastics.


Chemical designation
PEEK (Polyetheretherketone)
1,36 g/cm3

Main Features

  • high dimensional stability
  • continuous service temperature up to 260 °C
  • high strength
  • high thermal and mechanical capacity
  • very good chemical resistance
  • electrically conductive
  • good machinability
  • high toughness

Target industries

Technical details

  • Mechanical properties
    Mechanical propertiesValueUnitParameterNorm
    Tensile strength106MPa50mm/minDIN EN ISO 527-2
    Tensile strength at yield106MPa50mm/minDIN EN ISO 527-2
    Elongation at yield4%50mm/minDIN EN ISO 527-2
    Elongation at break (tensile test)4%50mm/minDIN EN ISO 527-2
    Flexural strength178MPa2mm/min, 10 NDIN EN ISO 178
    Modulus of elasticity
    (flexural test)
    4700MPa2mm/min, 10 NDIN EN ISO 178
    Compression strength27/47/106MPa1% / 2% / 5%EN ISO 604
    Compression modulus3600MPa5mm/min, 10 NEN ISO 604
    Impact strength (Charpy)58kJ/m2max. 7,5JDIN EN ISO 179-1eU
    Ball indentation hardness253MPaISO 2039-1
    Modulus of elasticity
    (tensile test)
    4800MPa1mm/minDIN EN ISO 527-2
  • Thermal properties
    Thermal propertiesValueUnitParameterNorm
    Melting temperature341CDIN EN ISO 11357
    Service temperature300Cshort termNN
    Service temperature260Clong termNN
    Thermal expansion (CLTE)510-5*1/K23-60°C, long.DIN EN ISO 11359-1;2
    Thermal expansion (CLTE)510-5*1/K23-100°C, long.DIN EN ISO 11359-1;2
    Glass transition temperature147CDIN EN ISO 11357
    Thermal conductivity0.46W/(k*m)ISO 22007-4:2008
    Specific heat1.1J/(g*K)ISO 22007-4:2008
    Thermal expansion (CLTE)710-5*1/K100-150°C, long.DIN EN ISO 11359-1;2
  • 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
    Resistance to hot water/ bases+--
    Resistance to weathering(+)--
    Water absorption0.03%24h / 96h (23°C)DIN EN ISO 62
    Flammability (UL94)V0-corresponding toDIN IEC 60695-11-10;

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