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Why do the castings have an “orange peel” like surface?

April 26, 2017Castings orange peel

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Why do the castings have an “orange peel” like surface?

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This is one of the effects of molds not curing properly indicating low room curing temperature, high humidity or both. It has been noticed by some that in such cases the curing needs to be done over several days. The best procedure would be to place the molds in the casting room where at least the room temperature would be higher even if the humidity is higher as well.