FEP film is a consumable accessories of LCD 3D printers and great quality is essential if you don t want to change it too often. To change your FEP film is very easy. Simply follow the tutorial comes with the package, you can easily replace the old FEP film in a few minutes. FEP release film characteristics : 1. Peeling force - good peeling performance, meet the release requirements of various products, can be reused2. High transparency - UV transmittance is over 95, which is the perfect product for printing and provides product quality3. Corrosion resistance - not affected by almost any strong acid, strong alkali, oxidant and other solvents4. Non-tacky - high cleanliness product surface provides product release and durability5. High temperature resistance - long-term stable working temperature 205degree celcius, melting point 260 degree celcius. 6. Flame retardant - achieve UL94V0 flame retardant level