ETFE: Light & Strong Fluoropolymer for Architecture, Electronics & Industry

Transparency, lightness and technical performance combined

ETFE (ethylene tetrafluoroethylene copolymer) is a thermoplastic fluoropolymer with exceptional transparency, mechanical strength, chemical inertness and UV stability. Much lighter than glass, but highly resistant to impact, it is particularly appreciated in the architectural, aeronautical, electronic and medical sectors.

Technical properties of ethylene-tetrafluoroethylene

Transparency and light transmission

  • Allows light transmission in excess of 90%.
  • Translucent or transparent material as required
  • Self-cleaning thanks to low surface energy

High mechanical strength

  • Impact resistance far superior to glass of equivalent weight
  • Elongation at break >300%, excellent tear resistance

Chemical and climatic resistance

  • Inert to most acids, bases, solvents and cleaning agents
  • Resistant to UV, ozone, humidity and marine conditions

Lightweight and flexible

  • Very low density (~1.7 g/cm³)
  • Enables the creation of very light, flexible structures
  • Withstands deformation without breaking

Good dielectric properties

  • High-performance electrical insulation, even in humid environments
  • Low dielectric constant, ideal for insulating technical cables

Applications for ethylene-tetrafluoroethylene

Architecture and urban design

  • Roofing membranes, transparent facades, domes
  • Used in iconic buildings: stadiums, greenhouses, museums
  • Weather-resistant for over 30 years without deterioration

Aerospace industry

  • Films for cabin linings, cable ducts, flexible windows
  • Certifiable material for high structural performance applications

Pharmaceutical and medical packaging

  • High-strengthsterile packaging films
  • Steam, gamma and EtO sterilization compatible

Electronics and photovoltaics

  • Wiring insulation, solar panel protective films
  • Resistant to UV, electrostatic charges and high temperatures

ETFE grade proposed by DEMGY

Tefzel® ETFE 280

  • High-performance formulation for severe industrial applications
  • Heat resistance up to +150°C, and excellent chemical resistance
  • Extrudable in sheaths, films, tubes or thin sheets

Why choose Tefzel® ETFE from DEMGY?

  • Complete mastery of ETFE extrusion and thermoforming
  • Customized production of films, sheaths, tubes and complex parts
  • Technical support right from the design stage to optimize cost, durability and performance
  • Supply of certified grades (FDA, ISO, aviation)

Conclusion: ETFE, the innovative material for transparency and sustainability

Fluoropolymer ETFE is a material with a bright future: strong, light, transparent and durable, it is the material of choice in fields requiring exceptional longevity and controlled aesthetics. DEMGY offers its expertise in Tefzel® grades for tailor-made solutions combining technical performance, visual quality and industrial reliability.

Associated products