Polyetheretherketone can be used at very high temperatures (about +500 °F) and it shows an extraordinary mechanical strength, toughness, hardness, flexural strength, torsional strength. PEEK exhibits excellent chemical resistance, very good dielectric properties up to +500 °F 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 PEEKTM

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

Here you will find an overview of product information sheets matching your selection. Do you need an information for the most current Material Safety Data Sheet (MSDS) ? Are you interested in our materials or do you have a question about a specific product ?

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Tel: +1 610 497 – 8941
Fax: +1 610 497 – 8901

GEHR Plastics Inc.
24 Creek Circle
Boothwyn, PA 19061


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