Is Silicone Rubber Suitable for Both Wax and Resin Casting?

Why Silicone Rubber Works for Resin and Wax

Most casting silicones are expertly designed to handle both resin and wax. They are flexible, strong, and withstand the temperatures involved in casting hot wax for candles or jewellery, while also suiting cold-cure resins like epoxy, polyurethane, and polyester. This makes them an ideal choice if you wish to switch between different casting materials or repeat projects with varying media.

• Excellent for capturing minute surface details
• Adapts to complex shapes and undercuts
• Compatible with a wide range of casting compounds (resin, wax, soap, plaster etc.)

Choosing a Suitable Silicone Rubber

When selecting a silicone, look for products specified as suitable for both hot waxes and resins. For example, the “Liquid Mould” Casting Liquid Silicone Rubber is known for its ability to reproduce fine details in both mediums and is designed for complex shapes. Platinum-cure and translucent options, such as the “Pure Mould” range, offer extra durability and transparency, which are appreciated for observing fill and curing during the casting process.

• Check manufacturer guidance on compatible materials
• Prefer bi-component silicones for the best detail and repeatability
• Mixing accuracy and full curing are vital for mould longevity

When This Matters: Reusable and Versatile Moulds

If you plan to create multiple or varied casts — such as shifting between bespoke candles and resin jewellery — versatile silicone rubber saves time and money. It is especially relevant for artisans, hobbyists, or those developing a new business, as one mould can serve diverse creative needs with minimal compromise on quality.