What You’ll Need

• “Global A2” – Release Wax for Epoxy and Resin Moulds, Liquid, Heat Resistant to 180°C: Liquid wax for mould release and surface protection
• “I–Gum” – Non-Toxic Silicone Putty for Mould Making: Non-stick mould putty for creating custom shapes
• “Bookmark” – Silicone Mould for Resin Casting: Reusable silicone mould for small casting projects
• “Pyramid” – Silicone Mould for Resin Casting, 11x11x6.5cm: Large silicone mould for more substantial resin projects
• Soft lint-free cloths
• Silicone oil or mould remover (optional for extra slip)
• Nitrile gloves (for safe handling)

Key Materials to Simplify Release

Choosing the right release agents and mould materials makes the entire resin casting process more predictable and headache-free. Using specially formulated liquid waxes, such as those designed for multi-surface adhesion control, together with durable silicone moulds, saves time and reduces the risk of damaging your creations during removal. These materials work together to give you smooth, clean edges—letting you focus on creativity rather than cleanup.

Step 1: Prepare and Clean Your Mould Surfaces

Before you begin casting, start by cleaning your chosen moulds thoroughly. Remove all dust, debris, or previous resin residues to ensure no contaminants affect the surface finish or cause the resin to cling. A lint-free cloth slightly dampened with water works well for this. Skipping this step can lead to bonding in unwanted spots and an uneven demoulding process.

If you’re using silicone moulds such as the “Pyramid” – Silicone Mould for Resin Casting, 11x11x6.5cm, extra cleaning effort may be required after repeated uses. Avoid using aggressive solvents which may damage silicone.

Step 2: Apply the Correct Release Agent

To create a reliable barrier between the mould and your epoxy, always apply a dedicated release agent prior to pouring your resin.

For most surfaces, a product such as “Global A2” – Release Wax for Epoxy and Resin Moulds, Liquid, Heat Resistant to 180°C offers a heat-resistant, quick-drying layer that works on various substrates like wood, metal, plastic, and cardboard. Gently apply with a soft cloth and allow a couple of minutes to dry before proceeding.

Ensure that you cover every part of the mould to avoid local adhesion. For complex shapes, buff lightly after drying to maintain a smooth film without excess buildup.

Step 3: Select and Use Suitable Non-Stick Moulds

Whenever possible, use moulds made from high-quality silicone because of their natural non-stick properties. Moulds such as the “Bookmark” – Silicone Mould for Resin Casting and “Pyramid” – Silicone Mould provide excellent release, often without the need for additional agents, but a light spray of silicone oil or a mould remover can add further confidence for demoulding intricate objects.

If you’re crafting a bespoke shape, using “I–Gum” – Non-Toxic Silicone Putty for Mould Making is ideal for creating custom forms with integral release capability.

Step 4: Pour and Cure Resin with Timing in Mind

Pour your epoxy resin carefully into the prepared moulds, avoiding excessive agitation which can drive resin into fine textural details and heighten the risk of sticking. Once poured, respect the manufacturer’s recommended curing time for your specific resin formula and the type of mould used.

Allow proper curing time for the epoxy resin before attempting demoulding. For many silicone moulds, removing the piece within 12 hours is advised to avoid difficult release or micro-adhesion. If left too long, even non-stick surfaces can develop a bond as resin shrinks during curing.

Tips to Avoid Common Demoulding Issues

• Always apply an even and thorough coat of release agent to your mould surfaces.
• Use the right mould material such as silicone for effective non-stick performance.
• Do not use harsh cleaners on silicone moulds—stick to soap and water.
• If a cast piece resists demoulding, freeze the mould briefly to contract the resin slightly and aid in release.
• Avoid leaving resin in the moulds beyond recommended times.
• Store silicone moulds away from direct sunlight and heat to preserve their non-stick surface.

Maintaining Non-Stick Performance Over Time

To ensure consistent non-stick results with epoxy resin projects, regularly inspect your moulds for wear and residue. Reapply release wax as needed and periodically clean moulds using only mild soap and water. Responsible care of your tools extends their lifespan and supports repeated, hassle-free casting.