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Tetrafluoroethylene-Perfluorodimethyldioxole-Fluorocopolymer (TFE/PDD)

Tetrafluoroethylene-Perfluorodimethyldioxole- Fluorocopolymer (TFE/PDD)Description:

TFE/PDD is a thermoplastic, amorphous fluorocopolymer, which is also known under the name TEFLON®AF by DuPont. TFE/PDD is a copolymer consists of tetrafluoroethylene (TFE) and perfluorodimethyledioxole (PDD). Among all known plastics this copolymer offers the lowest dielectric constant (1,89-1,93). TFE/PDD is characterised by transparency and a small refraction index. Like the most others fluoropolymers, TFE/PDD is resistant to multiplicity of chemicals and applicable over a wide temperature range. The service temperature of the copolymer lies under 360°C. At temperatures above 360°C the thermal decomposition of the copolymer starts. TFE/PDD shows a exceptional resistance to UV-radiation and it is in a great extent permeable for UV-radiation.


  • as optical fibre
  • as coverage for lenses in the microwave- radar- and optical domain
  • in UV cells
  • as passivation and protective envelope
  • as non-reflecting coat for optical units
  • as highly permeable membrane for the separation of gases


Tetrafluoroethylene-Perfluorodimethyldioxole- Fluorocopolymer (TFE/PDD)

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