Might as well leave the polystyrene in there for what it weighs. Only other issue with that method is that it will grow slightly compared to your mold. Also you can't add any textured or checkering surface to the outside surface
Might as well leave the polystyrene in there for what it weighs. Only other issue with that method is that it will grow slightly compared to your mold. Also you can't add any textured or checkering surface to the outside surface
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