Because of its robustness, PEEK is used in demanding applications, including bearings, piston parts, pumps, HPLC columns, compressor plate valves, and cable insulation. It is one of the few plastics compatible with ultra-high vacuum applications. This material is considered an advanced biomaterial used in medical implants. It is extensively used in the aerospace, automotive and chemical process industries. PEEK also performs well in applications where continuous high temperatures are common. Go to PEEK machined parts.