If you are looking to create detailed, durable, and reusable moulds for resin casting, crafts, or decorative projects, silicone putty and liquid silicone rubber stand out as the go-to materials. This guide walks you through our professional-grade silicone options, whether you are a hobbyist or an experienced maker, enabling you to choose the most suitable putty or liquid for your creative ambitions.

From fast and non-toxic putties to innovative translucent liquids and specialised design moulds, discover the best fit for jewellery, coasters, unique keepsakes, and much more.

Compare Our Bestselling Silicone Mould Making Products

The right silicone material ensures excellent detail, reusability, and consistent results in all your casting projects. Below, find a comparison of “I–Gum” – Non-Toxic Silicone Putty for Mould Making, “Pure Mould” – Translucent Liquid Silicone Rubber for Mould Making, “Silicone Hexagons Mould” – For Creating with Epoxy Resin – 24x21cm, “Three Drops” – Silicone Mould for Jewellery and Decorations, 28x20mm, and “Liquid Mould” – Casting Liquid Silicone Rubber, 5-40 Shores, Bi-Component A+B. All options are available for fast UK delivery.

Silicone Putty for Quick and Easy Moulds

For those who need a fast, non-toxic, and reliable solution, “I–Gum” – Non-Toxic Silicone Putty for Mould Making is a market favourite. Its easy 1:1 mixing ratio means no scales or complex measurements are needed. The putty contains no unpleasant odour and, thanks to its non-toxic formulation, you can safely use it without gloves for most craft work. Expect up to 20 minutes of working time, ideal for capturing fine details.

This premium Italian putty is highly versatile—use it to create custom forms and frames for resin, wax, cement, and even some polyurethane applications. It produces flexible yet robust moulds that retain their shape and sharpness across multiple castings.

Explore all our Silicon Rubbers for more options suited to various moulding tasks.

Liquid Silicone for Detailed Reproduction and Flexibility

When complex shapes or intricate details matter, platinum-based liquid silicones are preferred by professionals and creatives alike. The “Pure Mould” – Translucent Liquid Silicone Rubber for Mould Making contains platinum catalysis for extra durability and an easy 1:1 mixing ratio, with a relatively fast cure time of 3–8 hours. Its translucent appearance lets you monitor your projects throughout the process, which is especially useful for clearer resins and embedded objects.

With its advanced formula, “Pure Mould” stands out for less shrinkage over time and a 30% longer service life compared to regular silicones. Perfect for use with epoxy, polyester, polyurethanes, plasters, and more, it enables high transparency and accuracy for repeated casting. Fully vegan-friendly and cruelty free.

Discover additional liquid options in the Silicone Rubbers category.

Ready-Made Moulds for Effortless Crafting

Not every project requires starting from scratch. If you want to jump straight into crafting, ready-made silicone moulds are a practical and creative solution. The “Silicone Hexagons Mould” – For Creating with Epoxy Resin – 24x21cm is a durable, heat-resistant, non-stick mould perfect for coasters and home décor. It withstands temperatures from -40°C to +210°C and is easy to clean and reuse—ideal for immortalising photos, keepsakes, dried flowers, and more within resin castings.

For smaller projects and jewellery, the “Three Drops” – Silicone Mould for Jewellery and Decorations, 28x20mm is highly polished to ensure smooth results and can be used with a range of casting materials, including resin, soap, plaster, wax, and even chocolate. Its flexible, semi-transparent build allows precise demoulding of intricate shapes, making it a staple for DIY and artisan makers alike.

Browse other innovative shapes and designs in the New or Box Molds, Jewelry Boxes and Flower Vases category for more inspiration.

Professional Liquid Silicone for Advanced Mould Making

For technical applications demanding the highest detail and repeatability, “Liquid Mould” – Casting Liquid Silicone Rubber, 5-40 Shores, Bi-Component A+B is engineered for maximum detail capture and strength. This bi-component system is compatible with resin, soap, and polymer pastes, as well as for multiple reproductions of complex shapes, ornaments, and decorative items. High mechanical characteristics and the ability to reproduce even fine undercuts make it a standard choice in statue, prototype, and craft production.

Its liquid formula can reach every nook and cranny, resulting in highly detailed and long-lasting moulds. With shore hardness options between 5 and 40, you can select the flexibility and firmness best suited for your project. This versatile product is regularly used in artistic foundries, garden décor, model making, and much more. For more on compatible base silicones, visit our Silicon Rubbers collection.