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I was wrong about using a wet sponge to cool small molds
For years at our shop in Toledo, I'd mist a sponge and dab hot molds to speed cooling. Last month, a new guy from a big plant saw me and said, 'That's a quick way to get a steam burn and warp the piece.' He showed me his method: a small fan on low, placed three feet back, for about ten minutes. The metal cools evenly and the surface stays smooth. Has anyone else found a better trick for cooling small castings without cracking?
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jenny_young726mo ago
Feel your pain on that one. I've seen steam do weird things to finish quality. The fan trick is solid for keeping things even.
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zarag174mo ago
Ugh tell me about it, same thing happened to a coffee table I did last year.
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the_hayden6mo ago
Warp the piece" seems like you just got unlucky with your timing.
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kim_mason556mo ago
Timing is everything with humidity. @the_hayden is right about getting unlucky there. I had a tabletop that cupped on me last spring after a clear coat. Had to strip it back, let the wood sit in the shop for a week to adjust, and then redo the whole finish. A dehumidifier in the room made a huge difference for the second try.
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