PFA (nFEP) Film for Phrozen Sonic

Phrozen’s PFA (nFEP) films are specifically designed to last longer then regular FEP films and allows users to print out high-quality 3D models multiple times without constantly worrying about changing the film. After printing a model, just simply clean the film and you’ll be ready for your next printing project!

Both FEP film and nFEP film are transparent sheets that allow UV lights to pass through so that resin can cure easily. These are attached to the resin vat so that the resin 3D model can be printed on the surface of the film. Depending on usage frequency, both may need to be replaced periodically.

What’s the Difference Between the Two?

nFEP film is a specially treated FEP film that has a smoother and more delicate surface. The material used for the nFEP film allows it to provide less suction force in comparison to the FEP film during printing. This means that you will have a higher success rate in resin printing when the nFEP film is installed. The nFep film is especially suitable for fast-curing resins.

• Material: nFEP
• Color: transparent
• Size: A4 (210 * 290 mm)
• Thickness: 150 um
• Weight: 10 g
• Applicable models: Sonic 4K, Sonic XL 4K
• Content: 1 x film Phrozen nFEP (A4 / 210 * 290 mm)

When should I change my FEP film ?

1. Hold your FEP film towards the light to check to see if it is scratched or damaged. If the FEP film is scratched or uneven, it may be able to function normally though you should perform a test print to see if it produces any errors while printing. If it does, you should change your FEP film promptly.

2. If your FEP film has a bump on it, it may be damaged and you should replace it as soon as possible.

How do I replace my FEP film ?

An FEP film must be replaced once it is dented, deformed, or pierced. Minor scratches and/or smudges on the film does not require replacement as it does not affect the print quality. The following is a guide to replace your FEP film:

Removing the FEP film

Step 1: Remove the plastic cover of your resin 3D printer.

Step 2: Make sure the build plate has retracted completely. If it hasn’t, switch on the device and on the touch panel, click TOOLS, and click MANUAL, then proceed to lift the build plate to the top.

*Note: DO NOT exceed the Z-axis height limitation. If it exceeds the limit, the build plate will become stuck at the top.

Step 3: Turn off your LCD 3D printer and remove the two bolts securing the resin vat.

Step 4: Remove the resin vat from the 3D printer and lay it on a flat and stable surface.

Step 5: Spray some 99% IPA, on the resin vat, and clean it with a paper towel or a fiber cloth.

Step 6: Unscrew the screws placed on the back of the resin vat.

Step 7: Remove the FEP film frame from the resin vat and remove the FEP film. 

Installing the new FEP film

Step 1: Spray some 99% IPA, on the FEP film frame, and clean it with a paper towel or a fiber cloth.

Step 2: Place the FEP film between the resin vat and the FEP film frame.

Step 3: Slightly tighten the screws in the corners first. Then continue onto the sides.

Step 4: Once all the screws are in place, tighten it completely. 

Step 5: Use a utility knife to cut off the excessive FEP film off the resin vat.

Step 6: Install the resin vat back onto the LCD 3D printer. 

Tip:

If the screws cannot be loosened, it means that the resin has gotten into the screw joints. To resolve this issue, please spray some 99% IPA onto the screw joints, and let it rest for approximately 15 minutes before trying again.