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My foreman in Dayton said my core wash was too thin, and he was right.
I was brushing it on like paint, but he showed me how a thicker slurry prevents gas holes in the final casting. Anyone have a good ratio for a green sand wash?
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tara_patel8d ago
Try mixing it to a thick pancake batter. That consistency always gave me a good seal.
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jordanblack7d ago
Thick pancake batter is a solid start. Honestly though, skip the ratio and go by feel. You want it to coat a core and not run off. If it drips like water, it's way too thin. The goal is a good even layer that dries without cracking. Too thick and it'll peel, too thin and you get those gas holes.
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christopher9437d ago
Jordan's "go by feel" advice is great until you end up with a batch that looks like a science project gone wrong.
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