PEEK, polyether ether ketone, is an organic thermoplastic polymer. It is the most common polymer from the PAEK family (polyaryletherketone). Since its first commercialization in 1978, PEEK properties are used in an increasing number of demanding applications.
With its high mechanical properties and a melting point at 343°C, PEEK offers high performance for a large range of properties. PEEK material is often requested as the reference polymer when considering high performance polymer to metal substitution in critical parts.
This polymer is highly resistant to thermal degradation, and different grades allow for use in high or low temperatures.
PEEK material also shows a good chemical resistance, while not as wide as fluoropolymer’s one. It shows good electrical and thermal insulation.
PEEK material is often requested as the reference polymer when considering high performance polymer to metal substitution in critical parts.
It is also much lighter than metal (3 to 5 times lighter) and offers good thermal stability. Therefore it is often used to replace metal parts in harsh environments. Typical uses include bearings. It also shows excellent sealing properties in components like valve seats.
When substituting for metal, it is also used in a large variety of injected parts: springs and gears for example, offer a comprehensive range of assets compared to their metallic counterparts in terms of efficiency and noise reduction.