Polybutylene Terephthalate (PBT)


  • PBT blend is engineering plastics
  • Good creep resistance, very hard ,rigid and strong
  • High heat-distortion temperature, especially for glass fiber-reinforced grades
  • Service temperature to 140°C
  • Very good low-friction and wear-resistant properties
  • High dimensional stability (low thermal expansion coefficient, low water absorption)
  • Good electrical properties
  • Good chemical resistance
  • No environmental stress cracking
  • Good weathering resistance
  • Rapid crystallization and fast cycle time
  • Paintable
  • Flame-retardant grades available (UL 94 V-0, in some cases 5VA)


  • Automotive (gear, sensor connectors)
  • Electrical and Electronics (lamp sockets, connectors, electrometrical components)
  • Consumer goods (handles and covers of cookers, electrical iron, casing for sandwich toaster)
  • Fibers in toothbrushes
  • It is used in the keycaps of some mechanical keyboards
  • Fluid handling
  • Medical and pharma (inhaler components, drug delivery systems, and aerosol valves)
  • Packing, film, printing
  • Personal care and cosmetics