For small stuff i normally coat it with superglue and that seals it and the heat from the chemical reaction of curing also cures the sculpty but given I'm doing a massive project i can't see it doing it this way unless i can find super glue by the gallon. Anyone have suggestions? I normally also boil it when it is an item that would melt in an oven but I think material inside the sculpture wouldn't survive boiling so i'm looking for ideas. If i had a heat gun i'd try that as i could move it fast enough to cure areas and not kill the material inside.