Do You Need to Use a Release Film for Resin Repairs?

What Is a Release Film and Why Use One?

A release film is a specially designed plastic sheet that forms a barrier between resin and the mould or frame. Its main advantages are twofold: it helps the cured resin detach cleanly from the surface, and it imparts a glossy, flawless finish right out of the mould. Using a release film, such as the “Shiny Shield” Glossy Release Film, reduces the need for time-consuming sanding or further surface finishing.

How to Apply Release Film for Resin Repairs

Application is straightforward: simply remove the film’s backing and lay the glossy side against your mould or wooden frame, ensuring it’s smooth and bubble-free. Self-adhesive films stay in place during casting and are available in different widths to suit mould sizes. When your project has cured, peel away the film for a pristine, high-gloss surface—no sticky residue and minimal effort required.

When Is Using Release Film Most Helpful?

• When you want a high-gloss or mirror-like finish without additional polishing
• With complex or detailed moulds that would otherwise be difficult to demould
• For projects needing quick turnaround: the easy removal saves on clean-up and finishing time