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Plastic Resin Supplier

PET / PBT supplier — connector-grade engineering polyesters

Engineering polyesters that pair stiffness, dimensional stability and electrical performance — PBT for connectors and housings, PET for high-stiffness structural parts. Unfilled to heavily glass-filled.

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About PET / PBT

PBT crystallizes fast for short molding cycles and excels in electrical and automotive components; glass-filled PET delivers higher stiffness and heat performance at attractive cost. Both resist creep and moisture better than nylon in many electrical applications.

Grades we source

  • Unfilled PBT
  • Glass-filled PBT (15-50%)
  • FR PBT for electrical
  • Glass-filled PET (30-45%)
  • Impact-modified polyester grades

Common applications

  • Electrical connectors and bobbins
  • Automotive electrical housings
  • Under-hood sensors and components
  • Appliance and power-tool parts
  • Structural brackets

Typical properties

Impact strengthModerate (modified: good)
Heat (HDT)~120-220°C with GF
ClarityOpaque
Chemical resistanceGood
Relative costModerate

Property ranges are general guidance and vary by grade and supplier; our team confirms the exact spec and certification for your application.

Related materials: ABS · Polycarbonate · PC/ABS Blend · Nylon (PA) · all materials

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Describe what you're sourcing or what's going wrong — a polymer chemist reviews it personally and replies fast with real options, not a canned quote.

No obligation. Single gaylords welcome — no order too small. We start on it right away and reply fast.

Need PET or PBT priced this week?

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