Compare leading silicone rubbers for accurate, durable moulds

Looking to create precise, durable silicone rubber moulds for resin, plaster, wax, or a range of casting materials? This page helps you compare the top options for making professional-quality silicone moulds. Whether you’re a hobbyist, model maker, candle crafter, or a professional mould maker, discover the ideal silicone rubber for your project below.

Silicone Rubber for Mould Making: Overview and Key Differences

Choosing the best silicone rubber depends on the level of detail needed, your material compatibility, and whether you prefer a liquid or putty format. Liquid silicones are best for complex, intricate shapes and producing transparent or detailed moulds. Putty silicones offer convenience and speed for quick, simple shapes directly by hand.

• Translucent Liquid Silicone Rubbers allow easy observation of the model during curing and are ideal for multiple-use, highly durable moulds with detailed features.
• Casting Liquid Silicone Rubbers in bi-component (A+B) form provide the highest replication accuracy for small objects and designs with fine details or undercuts.
• Silicone Putty is non-toxic and suitable for direct moulding from your hands, offering a simple, glove-free process with a longer work time.

Liquid vs Putty: Real Project Examples

Liquid silicones create precise, multi-use moulds for casting resin or decorative candles, while silicone putty is favoured for quick moulds of items like buttons, jewellery, or ornaments directly by hand.

“Pure Mould” – Translucent Liquid Silicone Rubber for Mould Making

If you require a robust, highly detailed, and translucent mould, “Pure Mould” – Translucent Liquid Silicone Rubber for Mould Making is engineered for both professionals and hobbyists. With an easy 1:1 mixing ratio, this platinum-based silicone rubber sets in 3–8 hours and offers reduced shrinkage and extended service life—ideal for repeated use with resins, cements, plasters, and waxes. Its transparent finish enables monitoring for air bubbles or imperfections, and its mechanical strength ensures your moulds stay sturdy and usable across many castings.

“Liquid Mould” – Casting Liquid Silicone Rubber, 5-40 Shores, Bi-Component A+B

For projects demanding extraordinary fine detail and the ability to reproduce intricate shapes and undercuts, “Liquid Mould” – Casting Liquid Silicone Rubber, 5-40 Shores, Bi-Component A+B is the ideal choice. This two-part silicone rubber is designed to penetrate complex designs, capturing every nuance in your master model—from jewellery and small statues to decorative art and industrial prototypes. Used with a catalyst, it delivers high-fidelity moulds compatible with resin, soap, polymer, and wax. Suited for frequent use, artistic foundries, and projects where detail cannot be compromised.

“I–Gum” – Non-Toxic Silicone Putty for Mould Making

If you prefer a ready-to-use putty format for shaping directly around objects—no mould box or pouring required—choose “I–Gum” – Non-Toxic Silicone Putty for Mould Making. This two-component, odourless, and non-toxic silicone putty is perfect for making quick, accurate moulds of smaller items, frames, or creative shapes. With its user-friendly 1:1 ratio and no requirement for gloves, it’s especially convenient for beginner and experienced crafters alike. Its long working time (approx. 20 minutes) allows you to manipulate and perfect the putty for a variety of moulding tasks involving resin, polyurethanes, wax, and cement.

Choosing the Right Silicone Rubber for Your Project

Consider the size, complexity, and casting material compatibility for your upcoming project. “Pure Mould” excels for reusable, clear, and detailed moulds ideal for professional and repeated use. “Liquid Mould” is designed for exquisite detail and flexibility with different hardness ratings. “I–Gum” is best for direct, glove-free application and quick finishes. For more product options, see our Silicone Rubbers category.

Matching Your Mould to the Casting Material

For best results, match the silicone type to your casting material. Translucent and liquid silicones suit clear resin and fine art, while silicone putty suits hobby projects in wax or polymer. Always check compatibility for the finish you need.