Polybutylene Terephthalate (PBT)


Polybutylene terephthalate (PBT, PTMT) is a thermoplastic. It is one of the polyesters and has properties similar to those of semi-crystalline polyethylene terephthalate (PET), but is more suitable for injection molding because of its more favorable cooling and processing behavior. 

Polybutylene terephthalate (PBT) is widely used because of its high performance strength, rigidity, very high dimensional stability (significantly better than those of POM or PA) and good friction.

Properties of PBT

  • High strength
  • High rigidity
  • High dimensional stability
  • Good friction and wear properties
  • Resistant to many oils and solvents

Applications of PBT

Housing for electrical engineering and vehicle construction, connectors, shower head, toothbrushes.

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