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For those crafting with casting silicone rubber, allowing the mould to fully set is essential for successful demoulding and detail retention. A typical curing period of 10 to 12 hours ensures your project maintains its shape and integrity.
Why 10–12 Hours Matters for Silicone Demoulding
Liquid silicone rubber used for casting requires sufficient curing time to achieve the flexibility and strength needed for easy removal from the mould. Rushing the process may result in deformities or loss of fine detail. A 10 to 12 hour wait is generally needed for the material to reach full cure and support smooth demoulding without stretching or tearing.
Tips for Smooth Demoulding Results
- Check ambient temperature: Curing may take longer in colder rooms, so ensure your workspace is comfortably warm.
- Use a compatible release agent: This can make removal easier, especially for intricate shapes.
- Avoid force: Carefully flex or peel the mould to release detailed areas. If resistance is felt, allow additional curing time.
Consider using products like “Liquid Mould” casting silicone rubber, designed for detailed casts and reliable curing, for optimal results.
When This Timing Is Essential
Waiting a full 10 to 12 hours before demoulding is especially important for projects with fine details, deep undercuts, or where dimensional precision is needed. For crafts such as ornate jewellery moulds or complex figurines, patience pays off in professional-quality outcomes.
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Observing the proper curing time of 10 to 12 hours will help you achieve flawless results and minimise the risk of damage when demoulding. For broader guidance on curing and removal, explore more details on the main topic in our formwork timing guide.