| About |
|---|
| DuPont FEP film is a transparent, thermoplastic film that can be heat sealed, thermoformed, vacuum formed, heat bonded, welded, metalized, laminated – combined with dozens of other materials, and can also be used as an excellent hot-melt adhesive.&& |
| Product Description | |
|---|---|
| Supplier | Chemours |
| Generic | FEP |
| Material Status | Commercial: Active |
| Features | Weather resistance is good,No viscosity,Good heat sealing,High impact resistance,Good Electrical Properties,Low coefficient of friction,Good tear strength,Solvent resistance,Low moisture absorption,VTM-0 |
| Availabilitys | North America,Latin America,Asia Pacific,Europe |
| Technical Data | |||
|---|---|---|---|
| PHYSICAL | Nominal value | Unit | Test method |
| Density | 2.15 | g/cm³ | ASTM D1505 |
| dimensional stability | ASTM D1042 | ||
| TD，Shrinkage，150℃ | 2.2 | % | ASTM D1042 |
| MD，Expansion，150℃ | 0.72 | % | ASTM D1042 |
| Water absorption rate | |||
| 24hr | < 0.010 | % | |
| MECHANICAL | Nominal value | Unit | Test method |
|---|---|---|---|
| friction coefficient | |||
| Steel – Dynamic | 0.10 to 0.30 | ASTM D1894 |
| film | Nominal value | Unit | Test method |
|---|---|---|---|
| film thickness | |||
| test | 25 | µm | |
| tensile strength | ASTM D882 | ||
| MD, yield, 25 µ m | 12.0 | MPa | ASTM D882 |
| MD, fracture, 25 µ m | 21.0 | MPa | ASTM D882 |
| Tensile strain | |||
| MD, fracture, 25 µ m | 300 | % | ASTM D882 |
| Bending modulus | |||
| MD，25 µm | 480 | MPa | ASTM D882 |
| Elmandorf tear strength | |||
| MD，25 µm | 130 | g | ASTM D1922 |
| Graves Tear（25.0 µm） | 3 | N | ASTM D1004 |
| IMPACT | Nominal value | Unit | Test method |
|---|---|---|---|
| Izod notched impact strength | |||
| 25µm | 77.0 | J/cm | Internal Method |
| THERMAL | Nominal value | Unit | Test method |
|---|---|---|---|
| Hot deformation temperature | ASTM D648 | ||
| 0.45 MPa, unannealed, 0.0250 mm | 70.0 | ℃ | ASTM D648 |
| 1.8 MPa, unannealed, 0.0250 mm | 51.0 | ℃ | ASTM D648 |
| Melting peak temperature | 260 to 280 | ℃ | ASTM D3418 |
| specific heat | |||
| 25℃ | 1170 | J/kg/℃ | |
| Thermal conductivity coefficient | |||
| 25℃ | 0.20 | W/m/K | Internal Method |
| Electrical performance | Nominal value | Unit | Test method |
|---|---|---|---|
| Surface resistivity | > 1.0E+16 | ohms | ASTM D257 |
| Volume resistivity | > 1.0E+18 | ohms·cm | ASTM D257 |
| Dielectric strength | ASTM D149 | ||
| 23 ℃, 0.025 mm, in air | 260 | kV/mm | ASTM D149 |
| 23 ℃, 5 mm, in air | 70 | kV/mm | ASTM D149 |
| Dielectric constant | ASTM D150 | ||
| 1 kHz | 1.93 to 2.02 | ASTM D150 | |
| 25 ℃ | 2.00 | ASTM D150 | |
| Dissipation factor | ASTM D150 | ||
| 1 kHz | 2.0E-4 | ASTM D150 | |
| 1 MHz | 5.0E-4 | ASTM D150 | |
| 25℃ | 2.0E-4 to 7.0E-4 | ASTM D150 | |
| Arc resistance | |||
| 0.025 mm | > 165 | sec | ASTM D495 |
| insulation resistance | Internal Method | ||
| 100℃ | 3.5E+11 | ohms | Internal Method |
| 150℃ | 2.5E+11 | ohms | Internal Method |
| 200℃ | 6.5E+10 | ohms | Internal Method |
| FLAME CHARACTERISTICS | Nominal value | Unit | Test method |
|---|---|---|---|
| Flame retardant level | |||
| 0.03 mm | VTM-0 | UL 94 | |
| Extreme oxygen index | |||
| 0.025 mm | 95 | % | ASTM D2863 |
| optical performance | Nominal value | Unit | Test method |
|---|---|---|---|
| Refractive index | 1.341 to 1.347 | ASTM D542 | |
| Transmittance | |||
| 25.0 µm | 96.0 | % | ASTM E424 |
| Supplementary information | Nominal value | Unit | Test method |
|---|---|---|---|
| Burst Strength（Mullen，25.0 µm） | 0.0760 | MPa | ASTM D774 |
| MIT flexural strength (film, 25.0 µ m) | 1.0E+4 | Cycles | ASTM D2176 |
| Permeability | |||
| Gas: Carbon dioxide | 25900 | cm³/m²/atm/24 hr | ASTM D1434 |
| Gas： Hydrogen | 34100 | cm³/m²/atm/24 hr | ASTM D1434 |
| Gas: Nitrogen | 5000 | cm³/m²/atm/24 hr | ASTM D1434 |
| Gas： Oxygen | 11600 | cm³/m²/atm/24 hr | ASTM D1434 |
| Vapor： Acetic Acid | 6.3 | g/m²/24 hr | ASTM E96 |
| Vapor： Acetone | 15 | g/m²/24 hr | ASTM E96 |
| Vapor： Benzene | 9.9 | g/m²/24 hr | ASTM E96 |
| Vapor： Carbon Tetrachloride | 4.8 | g/m²/24 hr | ASTM E96 |
| Vapor： Ethyl Alcohol | 11 | g/m²/24 hr | ASTM E96 |
| Vapor： Hexane | 8.7 | g/m²/24 hr | ASTM E96 |
| Vapor： Water | 7.0 | g/m²/24 hr | ASTM E96 |
| Notes |
|---|
| 1. Typical properties: these are not to be construed as specifications. |
| 2. -40 to 240°C |
| 3. 500 V/sec, Method A (Short-Time) |
| 4. 6.35mm diameter electrode, 0.79mm radius, 60Hz |
| 5. -40 to 225°C |
| 6. 100Hz to 1MHz |
| 7. Samples melted in arc did not track. |
| 8. Based upon 0.2 MF wound capacitor sections, using single laer, Teflon® 50A Film. |
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