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E-CTFE is a linear block copolymer and belongs to the group of amorphous high-performance plastics. It is highly UV and weather resistant and also withstands high-energy (radioactive) radiation. Ethylen-Chlortrifluorethylene exhibits an extraordinary impact strength at temperatures ranging from -76 °C to +150 °C. A great part of the product properties attributes to the very smooth surface and differentiates HALAR® from other fluoropolymers. Due to the fact that E-CTFE is very pure, this material is being used to process chemicals and ultrapure water for the semiconductor industry. Also the permeation resistance to oxygen, carbon dioxide, chlorine gas and hydrochlorid acid is 10 to 100 times better than PTFE.

Properties GEHR E-CTFE®

Product range

  • Extremely high impact strength (down to -76 °C)
  • Good insulation properties
  • Very good weather resistance
  • High resistance to radiation
  • Very high chemical resistance
  • Very good sliding properties
  • Physiologically harmless
  • High density
  • Limited protection against stress cracking at temperatures > 140 °C


  • Parts which come in contact with aggressive media (e.g. plant construction industry)
  • Lining of tanks, pumps, flanges, fittings, parts in centrifuges
  • Parts for ultra pure applications
  • Adapters, dosing stations, filter frames
  • Sliding bearings, roller conveyors
  • Valves, pump- and sealing bodies
Downloads GEHR E-CTFE®

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