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Unread 02-01-2013, 07:51 AM   #8
Nostrum
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Join Date: Jun 2009
Posts: 395
Picking your brain again, the next hurdle I'm coming to is the metal powder in the plaster cast. Some reading suggests I should use wax (which that same channel does here).
I'm sure with the right release the metal powder would bond to the latex (or, I'm starting to lean much more toward urethane), but I have casting silicone which I'm not keen to use for such a temporary project. Ignoring that, might it be a better option to coat a thin layer inside the plaster mould (Or, a silicone layer over the clay before plastering) since all signs point to metal powder definitely not sticking to a silicone mould?
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