PBT is a semi-crystalline thermoplastic which has the quite similar properties  and chemistry with PET. The most obvious difference between PBT and PET is PBT crystallizes faster than PET and it is not possible to produce amorphous PBT under normal processing condition. PBT has a very good dimensional stability, high strength, high heat resistance, good chemical and electrical resistance

Application: keyboards casing, head lamp housing, airbag cover, cooling fans housing, wiper arms, valves, wheels, gears and etc.