FEP Film
FEP (Fluorinated Ethylene Propylene) film is a transparent, flexible fluoroplastic film made from a copolymer of tetrafluoroethylene (TFE) and hexafluoropropylene (HFP). It shares many properties with PTFE (Teflon®) but has better melt-processability, allowing it to be heat-sealed and thermoformed. FEP film is widely used as a transparent, heat-sealable, and chemically resistant material in applications such as flexible electronics insulation, medical packaging, non-stick release liners, and optical coatings due to its high clarity, thermal stability, and non-adhesive properties.
Feature
- High Temperature Resistance
- Continuous use: -200°C to +200°C (-328°F to +392°F) - Short-term peak: Up to +205°C (401°F)
- Excellent Chemical Resistance
- Resists acids, bases, solvents (similar to PTFE)
- Optically Clear
- High light transmission (~95% visible light)
- Non-Stick & Low Friction
- Similar to PTFE but smoother and more flexible
- Excellent Electrical Insulation
- High dielectric strength, low dissipation factor
- UV & Weather Resistance
- Stable under prolonged sunlight exposure
- Heat-Sealable & Weldable
- Unlike PTFE, FEP can be thermally bonded
Common Specifications
- Thickness: 0.025mm (1 mil) to 0.5mm (20 mils)
- Width: Up to 1.5m (59") in rolls or sheets
- Surface: Glossy (standard) or matte (for adhesion)
