Celazole PBI Thermoplastic

Celazole® PBI is the highest performance engineering plastic available today. It offers the highest heat resistance and mechanical property retention over 400°Celazole PBI F of any unfilled plastic. It has better wear resistance and load carrying capabilities at extreme temperatures than any other reinforced or un-reinforced engineering plastic.

As an un-reinforced 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.

Celazole® PBI is extremely hard and can be challenging to fabricate. Polycrystalline diamond tools are recommended when fabricating production quantities. Celazole® tends to be notch sensitive. All corners should be radiused (0.040″ min.) and edges chamfered to maximum part toughness. High tolerance fabricated components should be stored in sealed containers (usually polybags with desiccant) to avoid dimension changes due to moisture absorption. Components rapidly exposed to temperatures above 400° F should be “dried” prior to use or kept dry to avoid deformation from thermal shock.

Brand Names

Emco Industrial Plastics doesn’t claim to represent all of the manufacturers or trade name products listed. This list is intended as a guide of typical materials available for purchase from Emco Industrial Plastics, Inc. For additional information, use the form below to contact a representative.