In this tutorial we make a 1 piece, seamless skull mold using 5110 Platinum Silicone thickened with Thixo thickener. We made the mother-mold with our 6" plaster bandages. This is an easy, inexpensive way to make bust molds that can be used for casting rigid casting foam, resin, and other polyurethanes.
Zip Mold Release: https://bjbmaterials.com/zip-me-301s-release-spray
5110 Silicone: https://bjbmaterials.com/catalog/product/view/id/4391/s/tc-5110f-a-b/
Thixo: https://bjbmaterials.com/silicones/accessories/sc-5001/
Silicone Pigment: https://bjbmaterials.com/pigments/pigments
Video Library: https://www.brickintheyard.com/pages/video-library