Do I Need a Release Agent or Film for Resin Work?

What Is a Release Agent or Film?

A release agent is a barrier, such as a spray or specialised film, applied to the base or mould before pouring resin. Its main function is to prevent the resin from sticking, so you can remove your finished piece with minimal effort. Release films, like those found in our “River-Table” Kit, are transparent, adhesive, and designed to peel away cleanly without leaving residue.

When Should You Use One?

You should always consider a release agent or film if you want to preserve both your resin piece and the mould or base. This is especially important when working with wooden, MDF, or custom-made forms, where resin adhesion can be strong. For example, if you are creating a table or decorative panel and wish to keep crisp edges and simplify demoulding, a release barrier is invaluable.

• When casting on wooden or MDF bases
• When using intricate or reusable moulds
• If ease of demoulding is a priority

How to Apply Release Films

To use a release film, cut it to fit your chosen base or formwork and carefully press it into place, smoothing out air bubbles for even coverage. Once the resin has cured fully, peel the film back gently to release your finished piece. Release spray works similarly and should be applied in a thin, even coat before pouring the resin.