Can You Use One Mould for UV and Epoxy Resin?

← Back to How to replace resin for making jewelry?

Can a Single Mould Be Used for UV and Epoxy Resin?

When making jewellery, you may wonder if the same silicone mould can be used for both UV resin and epoxy resin projects. The answer is yes—provided you take the right precautions to keep your results clear and your moulds in top condition.

Cleaning Is Key for Multi-Resin Use

Silicone moulds are popular for their flexibility and compatibility with both UV and epoxy resins. However, the residues left behind by either type can easily affect the next pour. UV resin cures quickly under light, while epoxy needs time to set and may react with contaminants. To use one mould for both, always clean it thoroughly between uses. Warm soapy water and a soft sponge usually do the trick, but ensure the mould is completely dry before pouring another resin.

Tips to Maintain Clarity and Shape

Any leftover resin or pigment can cloud your next piece or cause sticky spots. To avoid this:

Demould your piece as soon as the resin is fully set.
Use gentle but thorough cleaning methods (avoid sharp tools).
Occasionally condition your mould with a tiny amount of silicone oil to help release and extend its life.

Choosing the Right Resin for Your Mould

Both UV and epoxy resins have excellent compatibility with most jewellery moulds, but they behave differently. For quick-cure projects, a UV resin such as “UV–Creation” – Fast Acrylic Resin is ideal. If you prefer a longer working time or need thicker pours, an epoxy like “Liquidissima” can be more forgiving. The choice depends on your project and schedule, but either can safely share a mould with good cleaning habits.

When Using One Mould for Both Matters Most

If you’re working on a large batch of pieces or like to switch styles, reusing a single mould saves space and cost. It’s especially useful for crafters and jewellery makers who experiment with both UV and epoxy resins in different projects or seasons.

Related guides

How To Replace Resin For Making Jewelry

By keeping your silicone moulds meticulously clean, you can confidently work with both UV and epoxy resins for a variety of jewellery designs. For further tips and ideas on resin jewellery making, explore our main guide on how to replace resin for making jewellery.