Silicone Rubber 1:1 Mould Maker | 4L Kit
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Info
Silicone Rubber 1:1 Mould Maker | 4L Kit
A platinum cure (addition-cure) silicone rubber that mixes 1:1 by volume and reproduces the finest surface detail with very low shrinkage. Being platinum cured, it's food grade and skin-safe, and keeps its shape over years of repeat use — ideal for impression moulds, masks, soap and candle moulds, and jewellery or prototype parts cast in conjunction with Solid Cast 660 Polyurethane.
Kit Includes
Product Details
Technical Data
Key Features
Common Uses
How to Use
Why Platinum Cure?
Platinum cure silicones use an addition-cure chemistry (catalysed by platinum) rather than the tin-based condensation cure found in cheaper rubbers. That means very low ongoing shrinkage, so fine detail stays accurate over the life of the mould, and a much longer library life — platinum cure moulds can be reused for years, compared to roughly 12 months for a typical tin-cure rubber. It's also FDA-compliant for food and skin contact, which is why it's suited to soap and candle moulds as well as life-casting work. One thing to note: platinum cure silicone won't cure properly against sulfur-based clays (such as sulfur-cure plasticine) — seal a sulfur-based model with an acrylic spray first, or use a sulfur-free modelling clay.
Storage & Safety
Wear protective gloves and glasses when mixing and using. Uncured material can be removed with a solvent or methylated spirit followed by washing with warm soapy water. Always wear a mask when using any solvent cleaner.
Frequently Asked Questions
What is platinum cure silicone, and why does it matter?+
What's in this kit and what's the mixing ratio?+
How long does it take to cure and demould?+
Is it safe for food or skin-contact moulds?+
