From the largest international candle making conglomerates to home hobbyists in the U.K. that enjoy making their own candles for family and friends, Bentley’s urethane and silicone mould rubbers are the supplies used to make custom molds for casting wax.
Urethane rubber, such as PMC-744, has been used for many years to create production candle moulds. Urethanes are low-viscosity liquid rubbers that cure overnight into tough, solid rubber moulds. Silicones, such as the Mold Star series, have become very popular for candles with intricate shapes and details. The release properties and high heat resistance of silicone makes it an excellent choice for making candle moulds.