Polybenzimidazole (PBI) has exceptional thermal and chemical stability and does not readily ignite. Due to its high stability, polybenzimidazole is used to fabricate high-performance protective apparel such as firefighter’s gear, astronaut space suits, high temperature protective gloves, welders’ apparel and aircraft wall fabrics. PBI is a very appealing material to high-tech industries such as semiconductor, aircraft and aerospace due to its unique property profile. Polybenzimidazole PBI Sheet and PBI Rod
 Polybenzimidazole  (PBI) Sheets ■ Beluns ®  PBI Sheet
 PBI Sheets (1)
 Polybenzimidazole  (PBI) Rods ■ Beluns ®  PBI Rod
 PBI Rods (1)

PBI (Size)
· PBI Rods: Dia 6mm upto 150mm; Length 500mm, 1000mm. According to customer requirements
· PBI Sheets: Thickness 3mm upto 150mm; W*L 500*500mm, 1*1M. According to customer requirements

PBI Feature
  • Extremely high maximum allowable service temperature in air (310°C continuously, going up to 500°C for short periods of time)
  • Excellent retention of mechanical strength, stiffness and creep resistance over a wide range of temperatures
  • Extremely low coefficient of linear thermal expansion up to 250°C
  • Excellent wear and frictional behaviour
  • Inherent low flammability
  • Good electrical insulating and dielectric properties
  • Low out gassing in vacuum (dry material)
  • High purity level in terms of ionic contamination
  • Excellent resistance against high energy radiation (gamma & X-rays)
  • Duratron PBI (Celazole PBI) Technical Notes