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Complete Guide on Polybutylene Terephthalate (PBT)

Applications of Polybutylene Terephthalate (PBT) and PBT Alloys

PBT offers numerous benefits to both designers and processors. The combination of mechanical & electrical properties makes PBT a perfect candidate for a large range of applications. Explore the applications of PBT and its alloys in detail.


Key Applications

PBT for Automotive Exterior and Interior Parts

The combination of high mechanical and electrical properties, good thermal stability and superior chemical resistance creates many automotive application opportunities for both PBT and its alloys. The polymer gives good durability under thermal stress and/or harsh chemical environments, particularly in automotive under-the-hood applications.

PBT can be found in both automotive exterior and interior parts and most particularly, in auto electrical system components. Typical examples include:
  • Windshield wiper covers
  • Mirror housings
  • Cowl vents
  • Handles and fans
  • Fuel system components
  • Connectors, sensor housings and fuse boxes
  • Motor components and ignition system components

PBT Alloys Applications: They are most commonly used in body exterior and safety applications including airbag covers and containers brake and fuel line clips, cable liners, and power distribution boxes.

PBT 'Guards' Against Breakdown in E&E Applications

PBT's extremely high electrical resistance and high dielectric strength help protect electrical and electronic components by providing a guard against leakage and breakdown in power circuitry. Many grades are designed for electrical and electronic parts have enabled innumerable applications in both signal and power uses. Among them are:
  • Switches, circuit breakers
  • Power sockets for modular building panels
  • Cable liners and fiber optic buffer tubes
  • Connectors, sensor housings, chip sockets
  • Transformer insulation
  • Terminal boards

PBT Alloys Applications: The alloys have also been used in ruggedized connectors and switches and heavy-duty housings as well as in telephone line splice housings.

High Mechanical Strength Makes PBT Suitable for Industrial Applications

PBT delivers excellent short-term mechanical properties, such as:

  • High strength
  • High stiffness
  • Good practical impact

Typically, industrial applications call for rugged parts capable of delivering long service life, often under harsh service conditions. Among the diverse examples are fluorescent lamp bases, street lamp reflectors, pump housings and impellers, filter media, monofilaments, and packaging components.

PBT Alloys Applications: With the added dimension of high toughness, PBT alloys have been employed in air filter housings, small off-road fuel tanks, tractor hoods and panels, power tool housings and conveyor chain components.

Consumer Goods Applications

Many consumer applications have benefited from the versatility of PBT-based resins, particularly those calling for durability and involving some exposure to higher temperatures or electrical stresses, such as may commonly be found in small handheld appliances and tools.

For PBT, typical applications include iron handles and bases, oven door handles, housings, motor brackets and closure panels. Because of its performance and appearance, PBT components can also be found on office furniture.

PBT Alloys Applications: Polyester alloys deliver toughness in such parts as are likely to be subject to impact and rough handling including appliance lids, closure and kick panels, covers, and seat backs and bottoms. In consumer recreation uses, PBT alloys appear in ski tops, ski boots, jet ski hulls and snowmobile and golf cart cowls.



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1 Comments on "Complete Guide on Polybutylene Terephthalate (PBT)"
FAIZAL M Mar 25, 2021
Hello! Why PBT are used over PC material for Electrical & Electronic Components Manufacturing? Which advantages gives PBT over PC? Regarads, F.N.Mansuri Axel Polymers Limited

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