Free shipping on orders over £29,85 
Shipping Tracking! 
Google
Facebook← Back to How to Make DIY Silicone Rubber
When working on your own silicone rubber moulds, one of the most crucial – and often overlooked – steps is allowing the material to cure undisturbed for the recommended time. Skipping this can lead to wasted materials and disappointing results. Here’s why patience during curing pays off and how to make your DIY projects a success.
Why Curing Time Matters
Silicone rubber needs time to fully set and develop its optimal properties. Rushing this process may result in moulds that remain tacky, distort, or fail to capture fine details. Curing times can vary depending on the silicone type and formulation. For example, a bi-component liquid silicone rubber like “Liquid Mould” typically requires at least 10–12 hours to cure completely when used for casting.
Best Practices for Curing
- Follow manufacturer guidance: Always check and adhere to the curing recommendations for the specific product you’re using. Some formulations, such as translucent options or silicone putties, may cure faster – around 3–8 hours for products like “Pure Mould” – while others may take longer.
- Keep the environment stable: Let the mould sit at room temperature, avoiding drafts or excessive humidity. Moving or touching the mould before it’s fully cured can spoil the final result.
- Give extra time in doubt: If unsure, it’s better to allow extra curing time rather than unmoulding too soon. This is especially important for thicker pours or cooler workspaces.
When Patience Pays Off
Waiting for full curing ensures your DIY silicone rubber mould will be flexible, detailed, and durable. This matters most when creating intricate or reusable moulds, such as those for jewellery, figurines, or crafts requiring high fidelity reproduction of small details. Taking your time here gives you a reliable base for all your resin, soap, or wax projects to follow.
Related products
Related guides
Paying careful attention to curing time is an essential step for any DIY silicone rubber project. For more complete mould making techniques and tips, visit our main How to Make DIY Silicone Rubber guide and ensure every creation is a success from start to finish.