PBT (Polybutylene Terephthalate)

PBT is hailed as “industrial skeleton combining rigidity and toughness”. Core features: excellent mechanical properties featuring high strength, high rigidity and remarkable fatigue resistance (tensile strength reaches 170 MPa after glass‑fiber reinforcement). It has outstanding electrical insulation, which remains stable under high‑temperature and high‑humidity conditions. It offers good heat resistance with long‑term service temperature of 120‑140 °C; its heat‑distortion temperature is greatly improved by glass‑fiber filling. It also provides favorable processability: fast crystallization speed, good fluidity and short molding cycle. Its main limitations are tendency to warpage (especially neat resin), notch‑sensitive impact performance, and poor resistance to strong acids and strong alkalis.

Main Applications

Electrical & electronics (over 50% market share): widely applied in connectors, relays, switches, cooling fans, transformer bobbins, energy‑saving lamp bases and various insulating components.

Automotive industry (around 24%): window motor housings, lamp reflectors, gearbox parts, junction boxes, sensors and various heat‑resistant & oil‑resistant components.

Industrial & consumer goods: optical‑fiber sleeves, pump assemblies, medical‑device housings, power‑tool housings, ice‑skate soles and other articles.

Please specify your additional requirements for environmental compliance, impact performance, tensile properties, gloss level, melt flow index, elongation at break and other physical‑property parameters.

MOQ: 1 ton upon successful sample testing. After‑sales: return and replacement for quality‑related defects.

Participation Process

Recycled pelletizing manufacturers please contact supplier service for supply registration.

Buyers: Click group‑purchase or contact procurement service to submit your procurement requirements. The platform screens qualified recycled raw‑material suppliers from the database or launches bidding according to your specifications. After sample validation, buyers confirm the preferred recycled material and supplier and sign the sales‑purchase contract.