Coating the uncured spray paint on the dolls with baking soda has indeed salvaged our "solvent based spray paint doesn't cure on soft vinyl plastics" mistake. The dolls are at least usable now for display in the "swamp witch's cupboard". We decided to skip adding activated charcoal powder because we really didn't know how any of this would work out. The next phase is to test a light coat of water based acrylic matte sealer spray over one of the dolls and see if it actually cures and hardens over the baking soda coated paint. If that's successful, we'll at least apply a watered down black latex paint antique coat over the dolls. If not, the dolls will have to be displayed "as is".
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