ETFE (polyethylene-co-tetrafluoroethylene) [Tefzel®]
Properties
Common uses
Material Specifications
ASTM or UL test | Property | Value |
Physical |
||
D792 | Density (lb/in3)/(g/cm3) | 0.061 (1.7) |
D570 | Water absorption, 24 hrs (%) | <0.1 |
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 |
D2240 | Hardness, Rockwell | D67 |
D256 | Izod notched impact (ft-lb/in) | No break |
Thermal |
||
D696 | Coefficient of linear thermal
expansion (x 10–5 in/in/F°/C°) |
7.3 |
D648 | Heat deflection temp at 264 psi | - |
D3418 | Melting temp (F°/C°) | 512/267 |
- | Max operating temp (F°/C°) | 311/155 |
C177 | Thermal conductivity (BTU-in/ft2–h– F°) |
– |
UL94 | Flammability rating | V-O |
Electrical |
||
D149 | Dielectric strength (V/mil) short time, ⅛” 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 |
These are typical values for reference and comparison only. They should not be used as a basis for design specifications or quality control. Contact us for the manufacturers’ complete material property datasheets. All values were taken at 73°F (23°C) unless otherwise noted.
Don’t see what you’re looking for? Call us at 800–423-2769 or email us at tom@crownplasticsinc.com.