Ethylene chlorotrifluoroethylene copolymer (E-CTFE) exhibits extraordinary impact strength in the temperature range of -76°C to 150°C. A large part of the product performance is due to the extremely smooth surface that sets HALAR® apart from other fluoropolymers. Because E-CTFE is so pure, this material is used to treat chemicals and ultrapure water in the semiconductor industry. Resistance to oxygen, carbon dioxide, chlorine and hydrochloric acid permeation is 10 to 100 times better than PTFE.

Features GEHR PSU®

Product Range

  • Very high impact strength (to -76°C)
  • Good insulation performance
  • Good weather resistance
  • Strong radiation resistance
  • excellent chemical resistance
  • excellent sliding
  • Physiologically harmless
  • high density
  • Limited resistance to stress cracking at >140°C


  • Parts in contact with aggressive media (e.g. factory construction)
  • Linings for vessels, pumps, flanges, fittings, centrifuge components
  • Ultrapure Applied Parts
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