In this tutorial we explain the process of pouring a silicone cavity pour mold, or as it now called, a matrix mold. The mold process is fairly involved, but once the shell or mother mold is constructed, it may be used to re-pour the mold for large production runs. As mentioned in the video, here's what we used:
**Update!** My store has closed, but here are equivalent products for this process:
White Modeling Clay: https://www.brickintheyard.com/collections/clays-for-sculpting-mold-making/products/whitemodelingclayu25
Mold Release for resin shell: https://bjbmaterials.com/e236-urethane-release/
Resin for mother-mold: https://bjbmaterials.com/tc-800-a-b/
1630 Tooling resin that is moisture resistant: https://bjbmaterials.com/tc-1630-a-b/
Fiberthick Thickener: https://bjbmaterials.com/fiberthick
Zip 301 Release for silicone pour: https://bjbmaterials.com/zip-me-301s-release-spray
Fast TC-5110F Silicone: https://bjbmaterials.com/catalog/product/view/id/4391/s/tc-5110f-a-b/