FEP coating is thin film applications of fluorinated ethylene propylene available in a variety of film thickness and colors. The following values are typical of the fluoropolymer and should not be used as a specification.
Electrical properties
| Property | ASTM standard | Unit | Value |
|---|---|---|---|
| Dielectric constant | D150 | MHz | 2.1 |
| Dielectric strength | D149 | V/m | 53 |
| Dissipation factor | D150 | MHz | 0.0006 |
| Arc resistance | D495 | s | 300 |
| Volume resistivity | D257 | Ω cm | > 1018 |
| Surface resistivity | D257 | Ω/sq | > 1016 |
Mechanical properties
| Property | ASTM standard | Unit | Value |
|---|---|---|---|
| Specific gravity | D792 | 2.15 | |
| Tensile strength | D1457 D1708 |
MPa (psi) |
23 (3.400) |
| Hardness | D2240 |
Shore D pencil |
56 HB |
| Coefficient of friction Static |
D1894 | - | 0.2 |
Physical properties
| Property | ASTM standard | Unit | Value |
|---|---|---|---|
| Melting point | D3418 | °C (°F) | 260 (500) |
| Max. operating temperature Continuous Intermittent |
°C (°F) °C (°F) |
204 (400) 232 (500) |
|
| Thermal conductivity | Bt in /(h ft2 °F) W/ (m K) |
1.4 0.20 |