A colorless organic thermoplastic polymer belonging to the polyaryletherketone (PAEK) family, polyether ether ketone (PEEK) is employed in engineering applications.


  • Nuclear environments
  • Oil & Geothermal wells
  • Chemical industries
  • High pressure valves
  • Food processing equipment
  • High Vacuum plant

PEEK is a semicrystalline thermoplastic that retains its high-temperature mechanical and chemical resistant qualities quite well. The crystallinity and, thus, the mechanical properties of PEEK can be affected by the processing conditions used to shape it. Tensile strength ranges from 90 to 100 MPa, while the Young’s modulus is 3.6 GPa. It has a high level of resistance to aqueous and organic conditions, as well as thermal deterioration. At high temperatures, halogens, strong acids, certain halogenated chemicals, and aliphatic hydrocarbons all attack it. At normal temperature, it totally dissolves in strong sulfuric acid.

Bearings, piston components, pumps, HPLC columns, compressor plate valves, and cable insulation are just a few of the durable products made from PEEK that are utilized in demanding applications. One of the few plastics that can be used in situations requiring an extremely high vacuum. It is widely utilized in the chemical process, aerospace, and car industries.

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