Polyetheretherketone can be used at very high temperatures (about +260 °C) and it shows an extraordinary mechanical strength, toughness, hardness, flexural strength, torsional strength. PEEK exhibits excellent chemical resistance, very good dielectric properties up to +260 °C and a very good resistance to all kinds of radiation (even ultraviolet rays only lead to a slight yellow discolouration). PEEK is self-extinguishing properties according to UL 94.

Properties GEHR PEEK®

Product range

  • Very high mechanical strength
  • Very high rigidity (also at low temperature)
  • Very high thermal stability
  • Very high creep resistance
  • Very high dimensional stability
  • Very high radiation resistance
  • Very high hydrolysis resistance
  • Relatively low notch impact strength
  • Low resistance to acetone



  • Bearing shells
  • Piston rings
  • Valve seats
  • Gears
  • Seals
  • Aviation
  • Cog wheels
  • Pump vanes
  • Fittings
  • Plug connectors for the chromatography
  • Wafer carriers
  • Semiconductor industry

GEHR PEEK natural
Drinking water: WRAS, ACS, NSF 61 (Raw material approval)
Food approval: 10/2011/EC, 1935/2004/EC (Semi-finished product approval)
Food approval FDA: 177.2415 (Raw material approval)

Downloads GEHR PEEK®

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