PEEK stands for polyether ether ketone, which is an organic thermoplastic. PEEK material is commonly used to form mechanical parts such as pump gears, impellers, and valve seats, as well as parts for lab and medical devices. Our PEEK sheet selection has excellent wear abilities, high temperature capacities, and can withstand certain chemicals. PEEK plastic holds its form well under pressure and strain. This tough engineering plastic is clear, and features similar performances to that of PTFE sheets and nylon sheets.