POLYBUTYLENE TEREPHTHALATE (PBT)

Polybutylene terephthalate (PBT) was developed by chemists at the German chemical company BASF in the 1970s. BASF was instrumental in the research and commercialization of PBT, building on the foundation of earlier developments in polyester chemistry.

PBT is a thermoplastic engineering polymer known for its excellent electrical properties, mechanical strength, and resistance to chemicals and heat. These attributes make it particularly valuable in the automotive, electronics, and consumer appliance industries. BASF’s pioneering work in developing and producing PBT has made it a widely used material in various high-performance applications.

Examples of our work with PBT pictured above are valve components, two of which also contain stainless steel inserts.

Why choose PBT for your injection moulding project?

  • 1. Durable and Strong: PBT injection moulding produces parts that are highly durable and strong making them ideal for use in industries such as automotive, electronics, and consumer goods.
  • 2. Chemical and Weather Resistant: PBT resins are resistant to chemicals and weather elements such as water, heat, and UV radiation, making them suitable for outdoor applications.
  • 3. Excellent Electrical Properties: PBT injection moulding produces parts with excellent electrical properties, making them ideal for use in electronic applications or components such as connectors, switches, and sockets.
  • 4. Dimensional Stability: PBT resins have good dimensional stability, which means that the parts manufactured via the injection moulding process will have consistent dimensions and tolerance levels.
  • 5. High-quality Surface Finish: PBT injection moulding can produce parts with a high-quality surface finish, which is ideal for products where aesthetics are important.
  • 6. Low Water Absorption: PBT resins have low water absorption rates, which makes them ideal for applications that require exposure to moisture or damp environments.
  • 7. Easy to Process: PBT resins are easy to process, making them ideal for mass production and high-volume applications.
  • 8. Environmentally Friendly: PBT resins are recyclable, which means that they are an environmentally friendly material choice for manufacturing applications

Overall, PBT injection moulding offers several advantages, making it an excellent choice for producing high-quality engineering parts. 

 If you have an injection moulding project and are considering using PBT, please get in touch with our technical team on 01280 706335 for a free consultation!

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