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Platinum-based translucent, fast-curing liquid silicone rubber is a preferred choice for mould making, prized for its clarity, rapid demould times and versatility across many casting materials. It is suitable for both professionals and enthusiasts needing detailed, reusable moulds.
What Sets Platinum-Based Translucent Silicone Apart?
Platinum-based silicone rubbers use a platinum catalyst system that gives them excellent dimensional accuracy, low shrinkage and extra durability compared to tin-cured alternatives. The translucency allows you to monitor the mould process—particularly helpful when working with intricate pieces or small details, such as 3D-printed resin models or wax patterns used in candle making. These silicones are both solvent-free and odourless, offering easy, safe handling in various environments.
How to Use: Practical Mixing and Casting Guidance
For most platinum-based liquid silicones, like the “Pure Mould” liquid silicone rubber, simply mix parts A and B at a 1:1 ratio. The mixture cures in roughly 3 to 8 hours, significantly speeding up production compared to slower-cure alternatives. Thanks to its flowing consistency, it captures precise detail and is compatible with materials including epoxy, polyester, and polyurethane resins, as well as plasters and cements. Cleaning equipment and tools with appropriate solvents immediately after use can help maintain sharp detail and extend tool life.
When Quick Setting and Transparency Matter
This type of silicone rubber is ideal when time is of the essence or seeing the casting process is beneficial—for example, when creating intricate jewellery moulds, reproducing detailed figurines, or verifying wax flow in complex candle shapes. Its fast cure and minimal shrinkage make it a reliable option for artists, model makers and those producing short runs or prototypes who cannot afford long downtime between moulds.
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Using platinum-based translucent and fast-curing silicone rubber for moulds ensures consistency, precision and convenience across a range of casting projects. To find out more about how silicone rubbers are made and used in detail, visit our main guide on how silicone rubber is made.