I guess there are different types of PVA, I should have specified. And I'm not sure if the stuff I was looking into stands for poly vinyl acetate. There is something called PVA that is used in painting aswell, mixes in with the paint and does something magical.
Anyways, my mold will have edges and I don't see how I'd be able to use wax paper in the corners without it wrinkling and screwing up the surface.
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