FEP film (FLONFILM™ 500) is melt extruded from Fluorinated Ethylene Propylene (FEP) and enjoys excellent chemical resistance and exceptional thermal performance. Polyflon offers two grades of FEP film:
FEP Film Type A – Our general purpose grade is suitable for applications where chemical resistance and high temperature are a concern. Type A performs well as a non-permeable barrier to aggressive fluids in tank lining applications and fuel cell/battery assemblies. The good weatherability and optical properties of FEP film provide excellent performance in PV modules and large scale algal growth cells. Due to the ease with which Type A can be welded to itself, gas sampling bags are an effective end use.
FEP Film Type B – Our premium grade is a translucent version produced from high molecular weight resin for applications where high flex life and stress-crack resistance are required, typical products being thin film diaphragms. The high molecular weight of Type B also affords this grade of FEP film very low gas diffusion through its wall and also exhibits an extremely smooth, self-cleaning surface finish.
Key Features of FEP Film:
- Excellent electrical insulator.
- Very low coefficient of friction – excellent release.
- High degree of transparency.
- No voids or pinholes – low permeability.
- Excellent chemical resistance.
- Temperature range of -254°C to +200°C (-425°F to 390°F).
Availability of FEP Film:
Polyflon can offer FEP film in semi-finished form on standard rolls or converted into finish cut/thermoformed/punched parts.
Get in touch to discuss your FEP needs: +44 (0)1785 859 054 / Contact us here.
FEP Film Sizing Chart
| Thickness | Std roll length | |
|---|---|---|
| mm | Inches | Meters |
| 0.0127 | 0.0005 | 362 |
| 0.0254 | 0.001 | 181 |
| 0.0508 | 0.002 | 90 |
| 0.0762 | 0.003 | 60 |
| 0.127 | 0.005 | 36 |
| 0.1905 | 0.0075 | 24 |
| 0.254 | 0.010 | 18 |
| 0.3556 | 0.014 | 13 |
| 0.508 | 0.020 | 9 |
Standard roll width: 1220mm (48”) @ 12kg.
Slit widths from 12.7mm (1/2”) up to max width 1625mm (64”).
Available pigmented/perforated for release applications.
