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Making your own silicone putty moulds is a popular way to capture details for crafts, jewellery, and model making. With the right method, you can create custom shapes and replicate objects with ease.
Mixing and Applying Silicone Putty
For most DIY and professional uses, a two-component silicone putty is ideal. Measure equal parts of each component and combine them with a 1:1 ratio. Knead thoroughly until the mix is uniform in colour and texture. Once prepared, quickly press the mixture around the object you wish to mould, ensuring an even layer for best detail capture.
The putty typically remains workable for around 20 minutes, giving you enough time to apply and shape it before it starts to set. After the initial setting phase, demould the item gently to avoid damaging fine details.
Curing and Releasing Your Mould
Allow your mould to cure thoroughly before use. Most silicone putties, such as the I–Gum Non-Toxic Silicone Putty, will cure in approximately 20 to 40 minutes at room temperature. Always check product instructions for curing times specific to the putty you are using. Once cured, carefully remove the original item. The finished silicone mould will be flexible, durable, and ready for resin, wax, or plaster casting projects.
When to Choose this Method
Silicone putty mould making is perfect when you need quick results, only require a single or few moulds, or are working with objects that have simple geometry. It is particularly useful for small-scale creations, home crafting, and rapid prototyping. For fine details or larger objects, consider a liquid silicone option, such as the “Pure Mould” Translucent Liquid Silicone Rubber for Mould Making.
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Mastering the recommended method for using silicone putty ensures successful mould making across a variety of creative projects. For more tips and accessories suited for your needs, explore our main guide on Silicone Putty and Accessories for Mould Making.