PBT is suitable but not very commonly used in machine design.

Why choose?

  • Nice “dry” surface that can be easily printed but also painted
  • Dimensionally accurate in comparison to most other semi-crystalline options
  • The product is exposed to moisture, PBT does not absorb water (unlike PA does)

Why not choose?

  • Your product is in contact with boiling water or steam for prolonged periods of time. Hydrolysis degrades polyesters.

Typical applications:

  • Computer keys
  • Frames of automotive lights
  • Electric connectors

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