Whether you are a hobbyist, artist, candle maker or a professional in need of precise casting solutions, sourcing the right liquid silicone rubber is essential for successful mould making projects. This page guides you through what liquid silicone rubber is, the main types available, their best uses, and where you can conveniently purchase them online in the UK.

Overview and Comparison of Liquid Silicone Rubber Types

Liquid silicone rubber for mould making comes in a variety of formulations, each with unique advantages depending on your intended application. The main differences to consider are mixing ratio, transparency, speed of curing, safety, and compatibility with different casting materials.

For detailed, highly accurate moulds, products like “Liquid Mould” – Casting Liquid Silicone Rubber, 5-40 Shores, Bi-Component A+B offer robust mechanical strength while allowing for fine detail capture and undercuts. Alternatively, the “Pure Mould” – Translucent Liquid Silicone Rubber for Mould Making is favoured for its fast setting and translucent properties, making it easier to visualise the casting process. For users who prefer a putty consistency and easy handling, “I–Gum” – Non-Toxic Silicone Putty for Mould Making is a versatile, non-toxic solution suitable even for those sensitive to odours.

Visual Examples of Liquid Silicone Rubber in Use

See a variety of finished moulds made using liquid silicone rubber. Notice the intricate details, undercuts, and surface quality achievable with products like “Liquid Mould” and “Pure Mould”. These images demonstrate the capability of each silicone type to capture even the most delicate features in casting projects.

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

This bi-component silicone rubber is designed for those who require both high fidelity and robust mechanical characteristics in their moulds. “Liquid Mould” is suited for making intricate moulds of small objects and is particularly effective when reproducing complex shapes or fine details with noticeable undercuts. Applications range from jewellery and artistic foundries to detailed decorative elements in resin, wax or ceramics. CASTING LIQUID SILICONE RUBBER – for moulds, bi-component A + B. It is compatible with resin, soap, polymer pastes and more, but remember that a catalyst must be added prior to use for successful curing. For further details and purchasing options, see “Liquid Mould” – Casting Liquid Silicone Rubber, 5-40 Shores, Bi-Component A+B.

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

For users seeking a platinum-based silicone rubber with quick curing and excellent clarity, “Pure Mould” is a stand-out choice. Its translucent nature provides a visual advantage when observing the fill level or positioning embedded items. This silicone works with a straightforward 1:1 mixing ratio, cures in as little as 3–8 hours, and results in highly detailed, durable, and reusable moulds. Suitable for both hobby and professional mould making, it handles epoxy resins, polyester, polyurethanes, acrylics, plaster, and cement. For accessible online purchase, visit the “Pure Mould” – Translucent Liquid Silicone Rubber for Mould Making page.

“Liquid Mould” – Casting Liquid Silicone Rubber, 15 Shores 20.8 kg

For high-volume users or those casting large series, this 20.8 kg format offers the same fine detail and high performance as the standard “Liquid Mould”, with a focus on batch production and industrial-scale projects. Like its smaller counterpart, it is ideal for casting small, highly detailed objects, especially where sophisticated undercuts or replications are crucial. Add the required catalyst before use. For bulk needs and to order, find the product here: “Liquid Mould” – Casting Liquid Silicone Rubber, 15 Shores 20.8 kg.

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

If you are looking for ease and safety, “I–Gum” provides a non-toxic, non-odorous alternative in a putty format. With an easy 1:1 mix ratio and a long working time (about 20 minutes), it is ideal for hand-shaped moulds or quick, small-batch tasks. No gloves are required for use, making it especially suitable for schools or shared workspaces. It is European quality, cruelty-free and vegan friendly. Suitable for moulds used with resin, wax, cement and more. Explore this option at “I–Gum” – Non-Toxic Silicone Putty for Mould Making.

Choosing the Right Liquid Silicone Rubber for Your Project

Select your liquid silicone rubber based on the project scale, level of detail, material compatibility, and desired working or curing time. Bi-component liquid products are preferred for intricate and highly detailed work, while silicone putty is an excellent choice for rapid, hands-on moulding. For more inspiration or to see the complete range, browse the silicon rubbers category.

Selecting Silicone Rubber for Different Applications

Tip: For jewellery and highly detailed items, choose a thin, bi-component silicone like “Liquid Mould”. For large, fast turnaround projects or where visual monitoring is important, opt for a platinum-based translucent silicone like “Pure Mould”. For hands-on fast moulding, a non-toxic putty such as “I–Gum” is ideal.