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Silicone oil is a popular choice for those working with silicone rubber moulds, especially when casting resin. It can help solve one of the biggest challenges: getting your finished piece out cleanly, without damaging the mould.
How Silicone Oil Works as a Release Agent
Silicone oil creates a thin, non-adhesive barrier between the silicone mould and the casting material. This prevents resin from bonding to the mould’s surface, making demoulding straightforward. Regular use of silicone oil can also help preserve the flexibility and lifespan of your silicone rubber moulds, which is especially valuable in repetitive casting projects.


Tips for Application and Best Practices
- Apply lightly: Use only a small amount of silicone oil and distribute it evenly across the mould using a soft brush or cloth.
- Avoid pooling: Too much oil can interfere with casting details or finish.
- Clean between uses: Wipe any residue as needed to maintain crisp mould definition.
For a high-quality, purpose-designed product, Silicone Oil for Mould Protection and Easy Release – 15ml is a reliable option for resin artists and hobbyists.
When This Matters Most
If you’re casting intricate or delicate items, easy demoulding is key to preserving fine details. Silicone oil comes into its own for artists and crafters working on multiple resin castings, helping reduce waste and prolonging mould usability.

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Related guides
Choosing the right release agent, like silicone oil, supports smoother demoulding and extends the life of your silicone rubber moulds. For more insight on suitable release agents, visit our main guide on release agents for silicone rubber.
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