I want to make a FEM-MANDO chest mold for my wife and was wondering what type of clay to use. Also, I want to box it in and pour silicone over it so I can cast it.
I can't find NOTHING to my liking so I want to give this a try.
What I really need to know is ......."Do I need to put a release agent on the clay before I pour the silicone over it?" and if I do, what do I use ?