Material Information

PEEK is a high performance thermoplastic that is tough, strong, rigid, and creep resistant. It offers excellent thermal, chemical, and hydrolysis resistance as well as excellent resistance to abrasion and dynamic fatigue. Its ability to run at high continuous temperature (480º F) without permanent property loss and stable electrical properties makes PEEK a good alternative to fluoropolymers in hostile environments. PEEK has also been shown to exhibit very low smoke and toxic gas emission when exposed to flame. PEEK is available in unfilled, 30% glass filled, 30% carbon filled, and bearing grade (Ketron HPV).

30% Carbon Filled PEEK has been reinforced with carbon fibers that improve PEEK’s compressive strength and stiffness, while also reducing its expansion rate. This grade of PEEK offers the best wear resistance and load bearing capabilities, while also offering 3.5 times higher thermal conductivity than Unfilled PEEK. This improves bearing life and capability. 30% Carbon Filled PEEK is available in sheet and rod in a black color.


  • Aircraft components
  • Wire and cable coatings
  • Automotive engine parts
  • Tearings
  • Woven monofilament
  • Film
  • Microwave applications
  • Pump and valve parts
  • Chemical processing
  • Electrical components and electronics
  • Semiconductor production
  • Industrial applications


  • Superior heat resistance and high temperature performance
  • High mechanical and electrical properties over wide range of temperatures
  • Outstanding chemical resistance
  • Resistance to high pressure steam
  • Resistance to gamma radiation
  • Very low moisture absorption
  • Good wear and abrasion resistance
  • Low smoke and toxic gas emission
  • Excellent flame retardance
  • Easy to fabricate


Astm Test Method


Density (lb/in^3) D792 0.051
Specific Gravity D792 1.41
Water Absorption @ 24 hours (%) D570 0.06


Tensile Strength (PSI) D638 19,000
Tensile Modulus (PSI) D638 1,100,000
Tensile Elongation at Break (%) D638 5
Flexural Strength (PSI) D790 25,750
Flexural Modulus (PSI) D790 1,250,000
Compressive Strength (PSI) D695 29,000
Compressive Modulus (PSI) D695
Izod Impact (Notched), ft-lb/in D256 1
Rockwell Hardness D785 M102


Coefficient of Thermal Expansion,
D696 1
Heat Deflection Temperature 264 psi, ºF D648 550
Melting Point, °F D3418 644
Continous Service Temp (Operating), °F  – 500
Thermal Conductivity, BTU-in/hr-ft² °F C177 6.4
Flammability Rating UL94 VO


Dielectric Strength, Short Term,
(Volts/Mil) @ .125″ Thick
D149 32
Volume Resistivity (ohm-cm) @ 50% RH D257 10^5
Dielectric Constant at 1 MHz D150
Dissipation Factor at 1 MHz D150


The information contained herein are typical values intended for reference and comparison purposes only. They should NOT be used as a basis for design specifications or quality control. Contact us for manufacturers' complete material property datasheets. All values at 73°F (23°C) unless otherwise noted.