Investment for lost foam

ArtMetal
Bramblebush


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Posted by Jeff Krueger on January 27, 19100 at 23:23:57:

I'm nearing completion of a blast furnace and plan to cast aluminum. The pieces I'm planning to start with will be bowls of about 10" to 14" in diameter. Is plaster by itself OK or is sand needed? How thick does the investment need to be? Any tips or pointers will be appreciated, and help avoid at least a few failures. Thanks

Jeff


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