Celazole PBI (grade U-60 – Compression-Molded 100% PBI) is the highest performance engineering thermoplastic available today. It offers the highest heat resistance and mechanical property retention over 400°F of any unfilled plastic. Celazole PBI has better wear resistance and load carrying capabilities at extreme temperatures than any other reinforced or unreinforced engineering plastic. Celazole U-60 PBI is an unfilled PBI polymer suitable for compression molding. U-60 is commonly molded and machined into precision parts for industrial, chemical and petrochemical industries; aerospace; glass making; liquid crystal display (LCD) panel manufacture; and photovoltaic (PV) panel manufacture. As an unreinforced material, Celazole PBI is very “clean” in terms of ionic impurity and it does not outgas (except water). These characteristics make this material very attractive to semiconductor manufacturers for vacuum chamber applications. Celazole PBI has excellent ultrasonic transparency which makes it an ideal choice for parts such as probe tip lenses in ultrasonic measuring equipment. Celazole PBI is also an excellent thermal insulator. Other plastics in melt do not stick to PBI. These characteristics make it ideal for contact seals and insulator bushings in plastic production and molding equipment. Highest mechanical properties of any plastic above 400°F (204°C) Highest heat deflection temperature 800°F (427°C), with a continuous service capability of 750°F (399°C) in inert environments, or 650°F (343°C) in air with short term exposure potential to 1,000°F (538°C) Lowest coefficient of thermal expansion and highest compressive strength of all unfilled plastics Celazole is stocked in our USA, Singapore & Taiwan Warehouses