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ETFE is a Fluoropolymer that provides high chemical resistance, dielectric strength and excellent weatherability and over a wide thermal range.

Brand Names

  • Norton® ETFE
  • Tefzel® ETFE


  • Excellent weatherability
  • High chemical resistance
  • Superior release properties

Common Applications

  • Thermoformed components
  • Heat sealed products
PropertyTest MethodTypical Value
 English unitsSI Units
Available Thickness Range-2 – 20 mil51 - 508µm
Max. Operating Temp.-330ºF165°C
Melt PointASTM D-3418482 - 518 ºF250 - 270°C
Dielectric StrengthASTM D-1495500 V/mil215 kV/mm
Dielectric ConstantASTM D-1502.62.6
Specific GravityASTM D-7921.70 - 1.761.70 - 1.76
Tensile StrengthASTM D-8827000 psi48 MPa

Norton® is a registered trademark of Saint-Gobain. Tefzel® is a registered Trademark of DuPont.

Note: The information displayed on the Welch Fluorocarbon, Inc. website should be utilized for evaluation and reference purposes only, and should not be used as a definitive source. It is the user’s responsibility to test the suitability of any material for their particular end use.