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For makers and professionals seeking reliable results, selecting the right silicone is crucial for mould making. Here you’ll find a concise guide to professional-grade silicone putty and liquid rubbers, perfect for a range of applications from crafting to detailed casting.
Understanding Silicone Types
Professional mould making silicones generally fall into two categories: putties and liquid rubbers. Silicone putty like I–Gum is valued for its fast and simple 1:1 mix, ideal for quick hand-moulded forms and easy application over objects. It is non-toxic and odourless, making it comfortable for extended work sessions.
Liquid silicones, available as platinum-based or high-detail casting rubbers, offer the advantage of flowing into fine details and undercuts in complex models. Variants such as “Pure Mould” and “Liquid Mould” excel in capturing intricate patterns, are suitable for multiple resin and wax types, and favour professional or artistic uses demanding higher fidelity.
Choosing the Right Silicone for Your Project
Silicone putties like I–Gum best suit smaller, quick-turnaround tasks, particularly if you need to finish a mould within about 20 minutes. Liquid rubbers such as Pure Mould and Liquid Mould require a bit more planning with curing times from 3 to 12 hours, but they provide exceptional detail and flexibility for repeated casts or technical applications. Always check compatibility with the intended casting material—most professional silicones here handle resin, plaster, wax, and cement effectively.
When Silicone Grade Matters
Choosing a professional-grade silicone is especially important when you need precision, repeated use, or safety reassurance for crafts involving close handling. Mixing ratios, working times, and formulation safety (such as non-toxic, odourless features) may affect your comfort and project success, whether you’re producing art, jewellery, or prototype models.
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Whichever silicone grade you choose, investing in quality materials is key to achieving durable and detailed moulds. For an in-depth look at selecting and using silicones for mould making, see our full Silicone Putty for Mould Making Guide.