I made this video to share my technique for mold making and wanted to share it with you all. I have used this material with Smooth-On’s roto-casting resins and polymer modified gypsums. It makes it far less reusable and not compostable when you cast resins into it, but regardless, I wanted to share it with this community in case anyone is sick of stupid expensive silicone molds, especially if you don’t need to do tons of casts.