"a citrus based cleaner like Goo Gone or citra-solve is good for cleaning oil based clays out of stone molds. it's also a decent solvent for smoothing oil based clays. if you do use any kind of solvent on your clay sculpt, maybe let it sit…"
"I also use Chavant NSP for sculpting and water based clay for the bed. I like to get the water based clay to a consistency where it is soft but not glutinously sticky. If I have any concerns about damaging the surface of the sculpt, I put it into…"
"You want it to sort of stick, enough to stay in place while you make the mould, but not mix and be hard to remove cleanly when you peel away the wall to make the second half of the mould.
The water based clay is good for the wall because after you…"
Hello, I haven't done any moldmaking but would like to try it. I've seen Nick Hilligoss's great video here: https://www.youtube.com/watch?v=5fWdZnQRzB0. My understanding is that I'll sculpt in one medium (eg NSP) and use another (eg water-based clay) to define the two halves of the plaster mold.My question is, is there a rule for deciding whether the two clays will stick to each other? In the video it seems important that NSP doesn't…See More
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