sculpting clay

the casting materials you're planning on using are irrelevant to the clay type.

you don't cast on the sculpt. You have to mold the sculpt first.

I think you should be concerned with the molding material you're going to use and how it reacts to the clay types.
If you want to make duplicates out of fiberglass or resin you need to paint your sculpt with rebound25 1/4 inch thick then cover it with plasti paste. Really should watch some smoothon guts. Just go to
does anyone have a recommendation on where and what type of clay I should start with. I have someone to do the molding and casting for me.... sounds like I should not get anything with sulfer
Chavant is always a good choice, chavant NSP medium (oil based) is a nice one to use or WED clay if you want to go water based (useful for bigger pieces)
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