High Performance > 300°F | Polyetheretherketone (PEEK)


TECAPEEK® stock shapes are made exclusively with Victrex PEEK polymer. TECAPEEK is a unique, semi-crystalline, high temperature engineering thermoplastic. It is an excellent material for a wide spectrum of applications where thermal, chemical, and combustion properties are critical to performance. Especially significant in this regard is TECAPEEK's ability to retain its flexural and tensile properties at very high temperatures in excess of 250°C (482°F). The addition of glass fiber or carbon fiber reinforcements enhances the mechanical and thermal properties of the basic TECAPEEK® material.

  • Excellent flexural, impact, and tensile characteristics
  • Very high continuous working temperature
  • Very high heat deflection temperature
    For unreinforced TECAPEEK™, the HDT @264 psi is 152°C (306°F). The addition of 30% reinforcement results in a dramatic increase to 315°C (600°F).
  • Exceptional chemical resistance
    TECAPEEK™ is insoluble in all common solvents.
  • A superior dielectric at high temperatures and frequencies
  • Good radiation resistance
    TECAPEEK™ exhibits superior resistance to high doses of gamma radiation.
  • Outstanding wear and abrasion resistance
  • Low smoke and toxic gas emissions
  • Excellent hydrolysis resistance
    TECAPEEK™ has an excellent resistance to hydrolysis in boiling water and superheated steam (sterilization/autoclavability) at temperatures in excess of 250°C (482°F).

TECAPEEK™s exceptional property profile enables it to be utilized in many of the most critical areas in general industry, as well as in the automotive, marine, nuclear, oil well, electronics, medical and aerospace fields.

  Properties ASTM Test Method Units *TECAPEEK® IM
30% Glass
30% Carbon
Physical Density D792 lbs/in3 0.0538 0.0520
Specific Gravity (gm/cm3) D792 - 1.53 1.41
Water Absorption, @24 hours, 73°F D570 % 0.11 0.06
Water Absorption, @Saturation, 73°F D570 % -
Mechanical Tensile Strength @ Yield, 73°F D638 psi 22,800 27,000
Tensile Modulus, 1% Sec, 73°F D638 psi 1,406,800 1,885,400
Elongation, Yield, 73°F D638 % - -
Elongation, Break, 73°F D638 % 2.2 1.1
Flexural Strength, 73°F D790 psi 33,800 46,100
Flexural Modulus, 73°F D790 psi 1,495,200 1,850,000
Compressive Strength, 73°F D695 psi 31,200 34,800
Shear Strength, Ultimate, 73°F D3846 psi 14,100 14,100
Izod Impact, Notched, 73°F D256 ft-lbs/in 1.8 0.9
Rockwell Hardness D785 - M103 M107
Limiting PV @ 68°F 1200 in/min - (psi) (ft/min) - 385,000
Coefficient of Friction, @ 68°F - -
1200 in/min, 155 lbs Load - - 0.30 0.22
Thermal *Deflection Temperature @ 264 psi, 1/4" D648 °F 600 600
Maximum Continuous - - - -
Use Temperature - °F 500 500
Melting Point - °F 633 633
Coefficient of Linear Thermal Expansion D696 in/in/°F 1.2 x 10-5 0.8 x 10-5
Thermal Conductivity C177 Btu-in/hr-ft2-°F 3.0 6.37
Flammability UL94 - V-O V-O
Electrical Volume Resistivity, 73°F D149 ohm-cm 1 x 1016 -
Surface Resistivity D257 ohm/square 1 x 1016 -
Dielectric Strength D257 V/mil 175 -
This information is only to assist and advise you on current technical knowledge and is given without obligation or liability. All trade and patent rights should be observed. All rights reserved.
*Data obtained from extruded shapes material.
**Data based on injection molded samples. TECAPEEK®-Ensinger Industries, Inc.