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Old 08-25-2020, 08:09 PM
Steven O'Day Steven O'Day is offline
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Join Date: Jun 2002
Location: portland oregon
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I don't know. My experience is that there are more problems with devit and scummy surfaces when casting into plaster than when fusing on shelves or into frax and vermiculite board backed molds. Like most things there are a lot of variables and I've never run controlled experiments to see if it is the plaster or something else like different cooling rates or generally larger pieces or geometry or ? when using plaster.
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