Duratron® CU60 PBI Polybenzimidazole is the highest performance engineering plastic available from Mitsubishi Chemical Corporation due to its superior mechanical properties, heat resistance, and ability to maintain mechanical properties above 400°F / 205 °C. It has better abrasion resistance and load carrying capacity in extreme temperatures than any other reinforced or unreinforced advanced engineering plastic. This makes this material very attractive to semiconductor manufacturers for vacuum chamber applications. Additionally, Duratron® PBI is ideal for high temperature bushings, connectors, valve seats and probe lenses.