FEP film is a transparent fluoroplastic with a unique combination of properties:
This unique combination of properties makes FEP film interesting for a variety of applications. Think of the flexvat for SLA, LCS and DPL 3D printers. UV disinfection systems, FEP as release foil for molds in the composite industry. In the chemical industry, because of the unique chemical resistance, as gasket or as separation foil. These are just a few examples.
Holscot Europe has set up a special site in order to be able to easily meet the large demand for FEP film: www.FEP-Film.com. We sell here FEP films cut to size, per meter or also more complex machine cut parts. The FEP film is on stock, and will sent within 2 working days, payment can be easily online and delivery is worldwide.
You can choose from 7 different standard thicknesses:
If you do not yet know exactly which thickness is most suitable for your application, we also offer a number of FEP sample packages.
In addition to the “standard” FEP film, we can also supply glassbacked film. The glassbacked FEP film is resistant to virtually all chemicals on the FEP side and can be attached to almost any surface on the glass side.
We also have years of experience in manipulating FEP film, we even won the prestigious Plunkett Award in the past. We can offer FEP films as:
By manipulating FEP film we can make various products such as FEP fuel tanks, FEP lens protection caps, FEP bags, containers, belts and much more.
| FEP Film Properties | |||
| PROPERTY | VALUE | UNITS | METHOD |
| Physical Properties | |||
| Specific Gravity | 2.15 | ASTM D1505 | |
| Tensile Strength (machine direction) | 290 | Kg/cm2 | |
| Tensile Strength (transverse direction) | 275 | Kg/cm2 | |
| Elongation (machine direction) | 350 | % | |
| Elongation (transverse direction) | 360 | % | |
| Bending Resistance | >100,000 | cycles | |
| Co-efficient of friction (static) (to steel ball) | 0.1-0.4 | Bauden-Rebens | |
| Contact Angle (water) | 110-115 | degrees | |
| Optical Properties | |||
| Transmittance (wavelength 0.2 to 3) | 95 | % | |
| Refractive Index | 1338 | N25 | |
| Thermal Properties | |||
| Melting Point | 270 | °C | |
| Lowest temp of thermal decomposition | 420 | °C | 10°C/min temp rise |
| Specific heat | 0.28 | Cal/g.cm | |
| Co-efficient of thermal conductivity | 6×10-4 | Cal/sec °C.cm | ASTM C177 |
| Co-efficient of linear expansion | 8.3-10.5×10-5 | 1/°C | ASTM D696 |
| Heat Shrinkage Rate (machine direction) | -0.4 | % 0.005mm | 30 min at 150°C |
| Heat Shrinkage Rate (transverse direction) | +0.3 | % 0.005mm | 30 min at 150°C |
| Electrical Properties | |||
| Dielectric Constant 103 – 109Hz (22°-2°C) | 2.05 | ASTM D150 | |
| Dissipation Factor 103 Hz (22°-2°C) | <0.0002 | ASTM D150 | |
| Dissipation Factor 106 Hz (22°-2°C) | 0.0004 | ASTM D150 | |
| Dissipation Factor 103 Hz (22°-2°C) | 0.0015 | ASTM D150 | |
| Volume Resistivity (22°C) | 1018 | Ohm-cm | ASTM D257 |
| Dielectric strength | 13 | Kv/100microns | ASTM D149 |
| Permeability | |||
| N2 Gas | 120×10-10 | Cm3.cm/cm2.sec.atm | ASTM D1434 |
| O2 Gas | 370×10-10 | Cm3.cm/cm2.sec.atm | ASTM D1434 |
| H2 Gas | 1080×10-10 | Cm3.cm/cm2.sec.atm | ASTM D1434 |
| CO2 Gas | 970×10-10 | Cm3.cm/cm2.sec.atm | ASTM D1434 |
| CH4 Vapours | 66×10-10 | Cm3.cm/cm2.sec.atm | ASTM D1434 |
| Ethylene Vapours | 44×10-10 | Cm3.cm/cm2.sec.atm | ASTM D1434 |
| Moisture Permeability | 1.6 | g/m2. 24hrs | |
| Water absorption | <0.01 | %, 24hrs | ASTM D570 |
| Flammability | |||
| Critical Oxygen Index | >95 | % by vol. | |
| Durability | |||
| Water, moisture | Excellent | ||
| Sunlight, ultraviolet rays | Excellent | ||
| These values are typical performance data, not intended to be used as design data | |||