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Start by finding of making an item you want to reproduce. For this type of mold making we need an item with one flat surface. We carved a Sea Turtle out of wood but you can use almost any small to medium size item that is hard and non porous.
Once one is removed the mold is ready to be filled again.
Silicone molds can be used to reproduce a variety of items. Sample is a concrete casting created from a carved wood template.
At this point the silicone mold is ready to use. You can use it to make castings in a variety of different materials.
First step is to glue your template to a smooth surface. We used a hot glue gun and plastic but wood would work. Next build a box around the template. This frame has to be sealed. We used silicone on all edges and then held pieces together with tape.
Check out our short YouTube video which depicts the entire process on how to make custom Silicone Molds able to cast reproductions in a variety of materials.
We used concrete and vibrated it four a couple minutes to make use the wet concrete filled all of the small details in the mold. Please note that the same mold could also be used to create wax, plaster, epoxy or even soap castings.
After 48 hours the concrete casting can be removed from the silicone mold.
Once the silicone is completely dry the template can be worked free from the mold. Silicone is very flexible which make this process pretty easy.
Silicone mold material is mixed as per manufacturers instructions and then poured over the turtle template. Start in one corner and continue to pour until at least 1/4 inch of silicone covers the entire template. Once poured the silicone mold has to dry completely. We let it dry overnight.
DIY Easy How to Make Project