Essential Tools and Mould Choices

Choose moulds that suit your design and level of detail. Flexible silicone options like the Silicone Hexagons Mould allow easy demoulding, while creating a custom shape is possible with Pure Mould liquid silicone rubber for intricate projects. Always have clean mixing implements and gloves ready for safe, accurate work.

Step 1: Prepare Your Mould

Start by selecting your mould. Make sure it is clean, dry, and free from dust or oils, as residue can affect the finish. If you are making a custom mould, use “Pure Mould” – Translucent Liquid Silicone Rubber for Mould Making to cast around your original model. Follow the product’s 1:1 mixing instructions and allow adequate cure time to form a flexible, detailed mould.

For reusable shapes—like coasters or trays—consider a ready-to-use mould such as the “Silicone Hexagons Mould” – For Creating with Epoxy Resin – 24x21cm. Ensure the mould is placed on a level surface.

Step 3: Pour and Cure the Resin

Slowly pour your mixed resin into the prepared mould, taking care to minimise bubbles. Pour in stages if your piece requires layering, and use moulds rated for your resin’s maximum thickness—Avoid using thick layers unless your resin is rated for deep pours.

If bubbles do arise, gently pop them using a toothpick or by exhaling across the resin’s surface. Some crafters use a heat gun on a low setting for this purpose, but avoid overheating as it can cause premature curing or surface flaws. Place the filled mould where it will remain undisturbed during the curing time recommended by your specific resin.

Tips, Common Mistakes, and Troubleshooting

Work in a dust-free environment to prevent particles landing in the wet resin. Mix slowly to avoid introducing excess air bubbles, especially with highly fluid or fast-curing resins. Always check curing times for each product as unmoulding too early can cause distortion or a tacky finish.

If you notice cloudiness or bubbles after curing, it is often due to trapped air or moisture during mixing. For thicker pours or embedding items, pour resin in layers to avoid overheating or incomplete curing. When in doubt, consult the resin product’s instructions for best practice on mix ratios and timing.

Handy Hints for Successful Resin Casts

Take your time during each stage—rushing can lead to bubbles, incomplete curing, or damaged moulds. Remember to follow each product’s instructions, maintain your workspace, and choose the right casting resin for your specific project. Patience and attention to detail yield the best and most beautiful results every time.