Engineering Plastics

Polybutylene Terephthalate (PBT)

PBT

PBT is a semi-crystalline polyester that stands out among engineering plastics for its electrical insulation performance. Its fast crystallisation allows moulding at short cycle times.

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About This Raw Material

PBT is a semi-crystalline polyester that stands out among engineering plastics for its electrical insulation performance. Its fast crystallisation allows moulding at short cycle times.

Much lower moisture uptake than polyamides and superior dimensional stability are the main reasons it is preferred for precision electrical parts. Flame retardant and glass fibre reinforced types are widespread.

Key Properties

Superior electrical insulationLow moisture uptakeDimensional stabilityChemical resistanceFast crystallisation

Typical Applications

Connectors and socketsRelays and coil bobbinsAutomotive electricsAppliance componentsSwitch bodies

Related Product Families in Our Portfolio

The brands and compounds we supply in this material type — click for grade lists and TDS requests.

Related Basechem Compounds

Technical Data Sheet

The information on this page describes the general properties of the polymer type. Numerical values such as melt flow index, density and strength vary by grade and appear only in the official TDS — we do not publish estimated values.

Supply in Türkiye and Europe

From our two warehouses on the European and Anatolian sides of Istanbul we offer same-day delivery within the city, and supply Europe through our Bucharest office.

PBT — Request a Quote

Contact our sales team for quantity, lead time and pricing.