GENERAL DESCRIPTION Tefzel ® ETFE is a fluorocarbon-based polymer. ETFE is an abbreviation for the chemical name Ethylene TetrafluoroEthylene. and the Tefzel ® brand of ETFE is manufactured only by DuPont. This material was introduced to provide a material with both corrosion resistance and mechanical strength over a wide temperature range. The fluoroplastic family offers plastics with high chemical resistance, low and high temperature capability, resistance to weathering, low friction, electrical and thermal insulation.
GENERAL PROPERTIES Tefzel ® 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.
APPLICATIONS
- Process vessels -- tank construction and linings
- Wire and cables -- insulation and jacketing
- Cryogenic applications -- super-cold refrigeration components
- Valves -- linings, seats, seals
- Compressors & pumps - linings and components
- Films -- food packaging, pharmaceutical packaging, optical recording, electroluminescent display panels
- Electrical components -- insulators, cable clamps
- Gaskets -- pressure, diaphragm, liquid gauge seals, fluid handling
- Bearings -- sleeve & thrust
- Stock shapes -- for machining components
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TYPICAL PROPERTIES of TEFZEL ® ETFE | ||
| ASTM or UL test | Property | ETFE |
| PHYSICAL | ||
| D792 | Density (lb/in³) (g/cm³) |
0.061 1.7 |
| D570 | Water Absorption, 24 hrs (%) | < 0.01 |
| MECHANICAL | ||
| D638 | Tensile Strength (psi) | 6,100 |
| D638 | Tensile Modulus (psi) | - |
| D638 | Tensile Elongation at Break (%) | 300 |
| D790 | Flexural Strength (psi) | - |
| D790 | Flexural Modulus (psi) | 145,000 |
| D695 | Compressive Strength (psi) | 2,470 |
| D695 | Compressive Modulus (psi) | - |
| D785 | Hardness, Shore D | D67 |
| D256 | IZOD Notched Impact (ft-lb/in) | No Break |
| THERMAL | ||
| D696 | Coefficient of Linear Thermal Expansion (x 10-5 in./in./°F) |
7.3 |
| D648 | Heat Deflection Temp (°F / °C) at 264 psi |
- |
| D3418 | Melting Temp (°F / °C) | 512 / 267 |
| - | Max Operating Temp (°F / °C) | 311 / 155 |
| C177 | Thermal Conductivity (BTU-in/ft²-hr-°F) (x 10-4 cal/cm-sec-°C) |
- - |
| UL94 | Flammability Rating | V-0 |
| ELECTRICAL | ||
| D149 | Dielectric Strength (V/mil) short time, 0.01" thick | 1,800 |
| D150 | Dielectric Constant at 1 MHz | 2.5 |
| D150 | Dissipation Factor at 1 MHz | 0.0060 |
| D257 | Volume Resistivity (ohm-cm)at 50% RH | 1017 |
NOTE: The information contained herein 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.Tefzel is a registered trademark of DuPont
All values at 73°F (23°C) unless otherwise noted.
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