How To Make a 2 Piece Silicone Rubber Mold

Video by Smooth-On

This mold making tutorial video shows how to make a two piece silicone block mold using Mold Star 15. The finished mold can be used for casting resin, wax, foam, and many other materials. The original model is a plastic sphere. The 2-part mold should be split along the horizontal axis.

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Mold Star® silicones cure to soft, strong rubbers which are tear resistant and exhibit very low long-term shrinkage. Molds made with Mold Star® will last a long time in your mold library and are good for casting wax, gypsum, resins, concrete and other materials. Cured Mold Star® rubber is heat resistant up to 450°F (232°C) and is suitable for casting low-temperature melt metal alloys. Note: Mold Star® rubbers are not intended for brush-on mold making.

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