PEEK (Polyetheretherketone)

PEEK, Polyetheretherketone, is a semi-crystalline high-performance thermoplastic material with high strength and stiffness as well as high ductility. It exhibits great chemical resistance, excellent mechanical strength, good electrical insulation, dimensional stability, and exceptionally high temperature resistance. It is suitable for continuous use up to 260ºC and still retains its physical properties. It also possesses hydrolysis resistance to steam, water, and sea water at elevated temperatures. It is commonly used in aerospace, automotive, medical, high temperature electrical applications due to these properties.

  • Outstanding Chemical Resistance:PEEK has good resistance to hydrolysis water and steam, alcohols, esters, alkaline solutions, oils, fats, and fuels…
  • Good Insulation Properties:PEEK has high volume resistivity and surface resistivity. It retains insulating properties over wide temperature range.
  • High Strength & Toughness
  • Low Water Absorption
  • Inherently Wear & Abrasion Resistance

semiconductor machinery components, aerospace parts, washers, bushings, bearings, seals, backup rings, syringes, endoscopes, medical implants, cervical cages, pump and valve components, vacuum wand handles, food processing machinery components…

Technical Data
Item Property Test Method Unit Value
Physical Density ASTM D792 g/cm3 1.31
Water Absorption ASTM D570 % 0.10
Hardness ASTM D2240 Shore D 87.5
Mechanical Tensile Modulus ASTM D638 psi 5.0 × 105
Tensile Strength ASTM D638 psi 16,000
Tensile Elongation ASTM D638 % 20
Flexural Modulus ASTM D790 psi 6.0 × 105
Flexural Strength ASTM D790 psi 25,000
Izod Impact ASTM D256 ft-lb/in 1.0
Thermal Vicat Softening Point ASTM D648 °C/°F  
Heat Deflection Temperature at 264 psi ASTM D648 °C/°F 160 / 320
Coefficient of Linear Thermal Expansion ASTM D696 in./in./°F 2.6
Flammability UL94 - V-0
Electrical Electrical Volume Resistivity ASTM D257 Ω-cm 4.9 × 1016
Dielectric Constant ASTM D150 1 MHz 3.30
Dissipation Factor ASTM D150 1 MHz 0.003
Dielectric Strength ASTM D149 V/mm 20,000