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Silicone moulds are popular for resin casting thanks to their flexibility and smooth finish. However, repeated use can cause them to lose suppleness, reducing their effectiveness over time. Employing the right care can significantly extend your mould’s usable life.
Why Regular Care is Essential
Silicone moulds, especially when used frequently for resin casting, are exposed to curing agents and mechanical stress that gradually stiffen or degrade their surface. Over time, this leads to reduced flexibility and possible tearing. Applying a mould care product, such as silicone oil for mould protection, helps to keep the mould soft and more elastic by forming a protective, non-adhesive layer on the surface.
How to Use Silicone Oil for Protection
To maintain your silicone moulds, clean them thoroughly after each use and ensure they’re dry. Apply a small amount of silicone oil, spreading it lightly over the surface. This adds a very thin, non-sticky barrier that helps prevent resin from bonding tightly to the mould, making demoulding easier and lowering the risk of accidental tears or damage. Regular application not only helps with easy release but can also extend the longevity of your mould investment.
When This Matters Most
Protective treatments are especially important if you cast resin frequently, work with intricate designs, or notice your mould starting to lose flexibility. Early care is always more effective than trying to revive a tired or brittle mould.
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Maintaining your silicone moulds with products designed for protection helps ensure smooth releases and longer-lasting performance. For more tips on preventing resin from sticking, visit our hub page on how to stop resin from sticking.