Whether you are a crafts enthusiast, a professional resin artist, or a small business creator, finding where to buy silicone rubber for moulds is essential for producing high-quality, precise castings. This guide provides a comprehensive comparison of the best silicone rubber solutions available on ResinPro, ensuring you select the right material for your unique requirements.

Choosing the Right Silicone Rubber for Mould Making

Selecting the ideal silicone rubber for your moulding projects depends on factors such as detail level, working time, and the casting materials you plan to use. On ResinPro, you can find both liquid silicone rubbers and putty silicones, each with distinctive features:

• Liquid silicone rubber delivers high detail reproduction and is ideal for intricate castings, including those with undercuts.
• Silicone putty provides a convenient, hand-mixable alternative for quick, smaller moulds or one-off pieces.

You’ll also want to consider mixing ratios, curing times, and whether the product is suitable for your casting materials, from epoxy and polyurethane resins to wax, plaster, and concrete.

See the difference: silicone moulds in action

High-quality silicone rubbers create crisp, reusable moulds for resin, plaster, wax, and more. Explore our gallery for real customer results and application inspiration.

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

The “Pure Mould” – Translucent Liquid Silicone Rubber for Mould Making is designed for both professionals and hobbyists who demand reliable detail, durability and an easy application process. Its innovative formula enables compatibility with a wide range of materials, including epoxy resins, plaster and cement. Transparent once cured, it lets you observe your project as it sets, and the platinum base offers enhanced dimensional stability and longevity. Thanks to a simple 1:1 mixing ratio and a quick curing time of just 3–8 hours, it’s an excellent choice for time-sensitive projects or batch production. The product is also non-toxic, solvent-free and odourless, catering to safety and environmental needs.

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

For creators seeking ultimate detail reproduction, “Liquid Mould” – Casting Liquid Silicone Rubber, 5-40 Shores, Bi-Component A+B stands out. This versatile two-part silicone rubber flows easily around complex geometries, ensuring even fine details and undercuts are faithfully captured. It is ideal for making moulds for jewellery, small models, decorative pieces and technical items across many materials, including resin, soap, wax, concrete and plaster. To use, simply add the included catalyst, ensuring thorough mixing for optimum results. The fully cured moulds offer repeated use with minimal loss of detail, making it especially suited for those producing multiple duplicate items.

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

For high-volume needs or larger projects, the “Liquid Mould” – Casting Liquid Silicone Rubber, 15 Shores 20.8 kg delivers exceptional value in bulk quantities. This variant maintains the ability to capture intricate features, making it perfect for serial production of complex moulds, from ornate garden ornaments to intricate resin art pieces. While sharing the convenient bi-component mixing system, this size is particularly attractive for workshops, studios, or schools with ongoing or large-scale casting requirements.

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

If you need fast, simple results for smaller objects or want to replicate unique textures and shapes, “I–Gum” – Non-Toxic Silicone Putty for Mould Making is an excellent solution. This user-friendly, non-toxic, and odourless putty can be mixed by hand in a straightforward 1:1 ratio and does not require gloves due to its safety profile. It is especially useful for artists and crafters making coasters, trays or small decorative items. With a working time of approximately 20 minutes, it is ideal for projects requiring swift turnaround and is easy to de-mould without release agents. The putty forms are compatible with a wide array of casting materials including resins, waxes, and cement.

Tips for Getting the Most from Your Silicone Moulds

To achieve the best results, always measure and mix your silicone components precisely, keeping tools and work surfaces clean and free from moisture. For highly detailed work, consider using a vacuum or pressure pot to eliminate air bubbles from liquid silicone mixtures. Silicone putty is ideal where complex formwork is impractical, and a quick 1:1 hand blend is preferred. Store all silicone products in a cool, dry place and tightly sealed to maximise shelf life. If you have specific project needs, browsing our Silicon Rubbers and Silicone Rubbers category pages can help you find exactly what your application demands.

Expert advice for perfect silicone casting

Careful mixing and surface preparation are key to replicating micro-details and ensuring longevity in your silicone moulds. For larger or repeated castings, always choose the right shore hardness and product type.