Which Resin for Candle Moulds and Hot Wax Casting?

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Which Product for Mould Casting Hot Waxes?

If you’re planning to create moulds for casting hot waxes, such as during candle making, choosing the right silicone rubber ensures durability, detail, and reliable results. Here is what you need to know when selecting a mould material for wax work.

Recommended Silicone Rubbers for Hot Wax Moulds

For robust and flexible candle moulds, both platinum-based silicones and high-detail casting rubbers are well-suited to hot wax applications. Products like Pure Mould Translucent Liquid Silicone Rubber offer temperature resistance necessary for molten wax, along with transparency that allows you to monitor casting as it sets. Alternatively, Liquid Mould Casting Liquid Silicone Rubber is ideal when fine details or prominent undercuts are required, ensuring a faithful reproduction of your original design.

Practical Guidance for Candle and Wax Mould Making

When working with hot wax, it’s best to select a silicone with high resistance to temperature and good flexibility for easy demoulding. Both recommended products cure at room temperature and allow for intricate designs, making them suitable for professionals and hobbyists alike. Observe the manufacturer’s suggested mixing ratios and cure times—typically a straightforward 1:1 ratio for “Pure Mould”, and bi-component mixing for “Liquid Mould”. Remember that for larger or repeated castings, there may be a small amount of shrinkage over time, so account for this if precision is important to your project.

When This Matters Most

Creating decorative or functional candles with defined shapes and details
Working with waxes that are poured at elevated temperatures
Needing reusable, detailed moulds for regular candle production

Related guides

How To Differentiate Mould Resin

Selecting a quality silicone specifically meant for hot wax casting is essential for smooth, professional candle making. For more insights on distinguishing different types of mould resins, visit our main guide on how to differentiate mould resin.