[Sonic CS+] Replacing the nFEP Film

The Sonic CS+ resin vat comes pre-installed with a standard nFEP film, which serves as the release layer during printing. Over time, the film can become dented, deformed, or punctured, leading to failed prints or reduced print quality. Minor surface scratches or smudges typically do not require replacement.

This guide will show you how to replace the nFEP film on your Sonic CS+ resin vat.

We recommend using Phrozen PFA (nFEP) Film (A4 / 210*290mm) for replacement.

Before You Begin

When to Replace the nFEP Film

• The film is dented, deformed, or pierced
• Significant clouding that affects print quality
• Visible tears or holes

Tools Needed

• 2.5 mm Allen wrench
• 3 mm Allen wrench

Standard Resin Vat

Removing the old Release Film

1. Use a 3 mm allen wrench to remove the ①②③④ M4x16 socket head screws.

2. Then use a 2.5 mm allen wrench to remove the M4x12 flat head screws.

3. Remove the old release film.

Installing the New Release Film

1. Position the new release film onto the frame, ensuring proper alignment.

2. Use a 3 mm allen wrench to install and tighten the ①②③④ M4x16 socket head screws to fully secure the assembly.

3. Use a 2.5 mm allen wrench to install and lightly fasten the M4x12 flat head screws.

4. Tighten all screws diagonally in a cross pattern to evenly distribute tension across the film.

5. Use a blade to trim off the excess release film around the edges.

6. After diagonal tightening, recheck all screws to ensure they are fully secured.

Mini Resin Vat

Removing the old Release Film

1. Use a 3 mm allen wrench to remove the ①②③④ M4x16 socket head screws.

2. Then use a 2.5 mm allen wrench to remove the M4x12 flat head screws.

 3. Remove the old release film.

Installing the New Release Film

1. Position the new release film onto the frame, ensuring proper alignment.

2. Use a 3 mm allen wrench to install and tighten the ①②③④ M4x16 socket head screws to fully secure the assembly.

3. Use a 2.5 mm allen wrench to install and lightly fasten the M4x12 flat head screws.

4. Tighten all screws diagonally in a cross pattern to evenly distribute tension across the film.

5. Use a blade to trim off the excess release film around the edges.

6. After diagonal tightening, recheck all screws to ensure they are fully secured.

Need Help?

If you need any assistance, please feel free to reach out to Phrozen Dental Support or your authorized resellers. We are always happy to support you.