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Tefzel® ETFE is a fluorocarbon-based polymer manufactured only by DuPont. It was introduced as a material which offered both corrosion resistance and mechanical strength over a wide temperature range.

Tefzel® ETFE (Ethylene TetrafluoroEthylene) was developed as a tough Teflon® with similar hardness compared to nylon, unlike virgin PTFE & FEP. The improvements in stiffness is paid for by reduced chemical resistance and working temperature. ETFE offers high purity, excellent chemical resistance, good permeability resistance, and excellent abrasion resistance over a temperature range of -300°F to +300°F (-185°C to +150°C). Tefzel® ETFE is available in sheet, rod, and film forms. It is also available in a fabric-backed sheet for construction of dual laminate vessels or the lining of existing chemical vessels.

Brand Names

  • Tefzel®
  • Norton®
  • Chemfluor®

Emco Industrial Plastics doesn’t claim to represent all of the manufacturers or trade name products listed. This list is intended as a guide of typical materials available for purchase from Emco Industrial Plastics, Inc. For additional information, contact an Emco Industrial Plastics representative by filling out the form below.

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At a Glance

Generic Name
Ethylene-Tetrafluoroethylen

Available In
Sheet, Rod, Tube, Film

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Technical Information

Stock Products Properties Applications Advantages Grades

Stock Products

TypeSizeLengthColor
Sheet 0.25″ – 0.75″ TH Std. sheet sizes; CTS Natural
Rod 0.063″ – 3″ DIA Std. foot lengths; CTS Natural
Tube 1/16″ – 1/2″ OD; wall thickness varies Std. foot lengths; CTS White
Film 0.0005″ – 0.020″ TH 48″, 62″ roll width Blue, red

Give us your cut-to-size dimensions. We will precision-cut these plastics to your exact size. Additional sizes and colors available upon request.

Properties

Physical PropertiesUnitsASTMResults
Density lb/in3 D792 <0.01
Mechanical PropertiesUnitsASTMResults
Tensile Strength @yield psi D638 6100
Tensile Elongation @Break % D638 300
Flexural Modulus psi 400000 145000
Compressive Strength psi D695 2470
Hardness, Shore D D785 67
IZOD Impact Strength Notched ft-lb/in D256 No Break
Thermal PropertiesUnitsASTMResults
Coefficient of Linear Thermal Expansion (x 10-5 in./in./°F) D256 7.3
Melting Temperature °F D3418 311
Flammability Rating UL94 V-O
Electrical PropertiesUnitsASTMResults
Dielectric Strength V/mil D149 1800
Dielectric Constant D150 2.5 @1 MHz
Dissipation Factor @ 60 Hz D150 0.0060 @1 MHz
Volume Resistivity, 50% RH ohm-cm D257 10^17

NOTE: The property values presented above are typical values intended for reference and comparison purposes only. They should NOT be used as a basis for design specifications or quality control. Contact us for manufacturers’ complete material property datasheets. All values at 73°F (23°C) unless otherwise noted.

Applications

  • Tanks, liners
  • Valves, seats, gaskets, and seals
  • Pump components
  • Bearings
  • Super-cold refrigeration components

Advantages

  • High purity
  • Excellent chemical resistance
  • Good permeability resistance
  • Excellent abrasion
  • Low and high temperature capability

Grades

  • Unfilled
  • Glass filled
  • Carbon filled
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