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Polyetheretherketone (PEEK) mechanical properties are used in aerospace applications, conveyor belts and harnesses.

peekPolyetheretherketone (PEEK) is a thermoplastic poly-condensate available in multifilament, monofilament, and spun yarns. The fibers have great mechanical properties which are maintained under extreme conditions.

PEEK fiber properties include:
  • Chemical resistant
  • Excellent thermal performance (operates from -60°C to 250°C)
  • Mechanical wear resistant
  • Low coefficient of friction
  • Biocompatible (resistant to multiple autoclave sterilizations, and resistant to radiation)
  • High vacuum compatible
  • Halogen free and RoHS compliant
  • Low flame, low smoke, and toxicity
Sample PEEK applications:
  • Filtration fabric
  • Conveyor belts
  • Wire harness
  • Hose covering and reinforcement
  • Aerospace

Technical Data

Tenacity (g/denier) 6.0 - 7.0
Elongation at break (%) 20 - 50
Shrinkage at 177°C (%)
Melting point (°F) 640
In flame Does not burn
After flame Does not burn
Chemical resistance Excellent chemical resistance
Specific gravity (g/cc) 1.3
Moisture regain (%) 0.1
Disclaimer: Values are only a guide. Actual values depend on manufacturer and exact type of yarn. Please contact our engineering team for specific values as they relate to your application.

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Need help finding
the right product?

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Inside, we highlight topics such as:

  • Common Specifications: (Mil-Spec, PIA, & UL)
  • Fabrication Methods: (Braiding, Jacquard Loom, Shuttle Loom, etc.)
  • Weave Types: (Basket, Plain, Satin, Twill)

Additional Resources

Understanding the  Versality of 3D Woven  CompositesDownload eBook Benefits of shuttle  Loom WeavingDownload eBook

Need help finding
the right product?

Cut your research time in half by
downloading our Webbing 101 Guide. Download eBook

Inside, we highlight topics such as:

  • Common Specifications: (Mil-Spec, PIA, & UL)
  • Fabrication Methods: (Braiding, Jacquard Loom, Shuttle Loom, etc.)
  • Weave Types: (Basket, Plain, Satin, Twill)

Additional Resources

Understanding the  Versality of 3D Woven  CompositesDownload eBook Benefits of shuttle  Loom WeavingDownload eBook