Polyetheretherketone can be used at very high temperatures (about +260 °C) and it shows an extraordinary mechanical strength, toughness, hardness, flexural strength, tensional strength. PEEK exhibits excellent chemical resistance, very good dielectric properties up to +260 °C and a very good resistance to all kinds of radiation (even ultraviolet rays only lead to a slight yellow discoloration of its self-extinguishing properties according to UL 94.

Properties

 very high mechanical strength
 very high rigidity (also at low temperature)
 very high thermal stability
 very high creep resistance
 very high dimensional stability
 very high radiation resistance
 very high hydrolysis resistance
 relatively low notch impact-strength
 low resistance to acetone

Application

Bearing shells, piston rings, valve seats, gears, seals, aviation, cog-wheels, pump vanes, fittings, plug connectors for the chromatography, wafer carriers, semiconductor industry.