Copolyester is related to but not the same material as PET used in drinking bottles.

Why choose it?

  • Transparent
  • Widely used material for food products, e.g. drinking bottles (no BPA).
  • Good impact and chemical resistance.

Why not choose it?

  • Poor UV resistance.

Typical applications:

  • Sippy cups
  • Sports water bottles

Questions, Comments, Feedback

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All information on is based on the best knowledge and understanding of experienced plastic product designers. Nevertheless, we may be wrong. Do not use this website as your primary or only source of information. Always check and test in practice. Kindly contribute, if you know better. We do not take any responsibility, financial or ethical, for the outcome of your product.