KOYOFEI ACF Release Film 290x210x0.3mm - High Speed Resin Vat Film

In this review the KOYOFEI 3PCS ACF Film kit is considered for resin 3D printer users who want a more durable, heat resistant alternative to common FEP films. The bottom line: this is a practical replacement set for 10.1-10.3in vats that helps support higher print speeds and lower peel forces, making it best for hobbyists and pros who push prints faster or want longer-lasting vats. The review focuses on installation, performance, and how the film compares in adhesion and clarity to nFEP/FEP options.

Key Features

• Premium material: The film uses a conforming ACF surface with a removable blue protective layer on the smooth side to keep the print surface pristine before first use.
• Lower release force: ACF produces less peel resistance than NFEP and FEP, which can reduce deformation during curing and improve success on delicate details.
• High speed capable: Because release force is lower, printers can run at higher speeds with better consistency when settings are tuned accordingly.
• Heat resistant: The film withstands high temperatures, rated for long term use to about 260 C and a melting point around 305 C, which gives more thermal stability than typical FEP.
• Kit of three: The pack includes three 290x210x0.3mm sheets sized for 10.1-10.3in vats, so users have spares for multiple changes or experiments.

Who It's For

This kit is aimed at owners of large-format LCD printers such as Elegoo Saturn 3 Ultra, Saturn 3, Saturn 2, Photon M5S series, Photon M7 Pro, and Halot Mage series who want a replacement vat film that tolerates higher temperatures and supports faster printing. It is particularly useful for users printing many parts or experimenting with higher exposure and faster peel settings where FEP films showed deformation.

Users who prioritize absolute optical clarity for extremely delicate casts or those who need guaranteed adhesion on every model may want to test a single sheet first, as customer feedback shows mixed results on adhesion and clarity in some workflows. Beginners should follow the included installation steps carefully to avoid creases and maintain tension.

Pros & Cons

Pros

• Lower release force improves delicate detail retention and can increase print success rate when tuned.
• High heat resistance and durability reduce the frequency of replacements during heavy use.
• Three-sheet pack gives immediate spares and value for regular printers.
• Easy to install when protective film is removed and the sheet is tensioned correctly.

Cons

• Print quality reports are mixed across users, with some noting adhesion or clarity issues on certain resins and setups.
• Proper installation is required to avoid creases; mishandling protective layer can cause surface defects.

Specifications

Our Verdict

The KOYOFEI ACF 3-piece film kit is a solid value for users who need a more heat tolerant and lower-peel alternative to common FEP films, especially at larger vat sizes. It is recommended for intermediate and advanced hobbyists or pros who print frequently and want longer service life and higher speed potential, though some printers and resins will need tuning to avoid isolated adhesion or clarity issues.

Frequently Asked Questions

How do I install the ACF film?
Remove screws to separate the steel rings, sandwich the new ACF sheet between the rings, tighten screws and reattach the vat; remove the blue protective film from the smooth side before first use.

Which side faces the LCD?
The matte back side faces the LCD screen while the smooth side with the protective film contacts the resin.

Will this work at higher print speeds?
Yes, the lower release force of ACF supports higher printing speeds, though you should test and tune exposure and peel settings for your resin and printer.