PolyetheretherkEtons are high-performance plastics that are marketed under the brand name Vicote® Fa. Victrex and KetaSpire® sold by Solvay Solexis. They are thermoplastics and, due to their high melting point, are particularly temperature-resistant. In addition, they are relatively hard and abrasion resistant compared to other plastics, so they are used as coatings with increased wear protection. The corrosion and chemical resistance of PEEK, with the exception of sulfuric acid, is also very good, so that these plastics are also suitable as anticorrosive coatings. Compared to fluoropolymers PEEK has a higher creep resistance and is therefore also suitable for the coating of sealing surfaces, which are subjected to particularly high surface pressures.