Air-set sand

ArtMetal
Bramblebush


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Posted by John Odom on September 21, 1999 at 16:57:00:

I met a man this past week-end that said he did lost wax casting by putting the wax pattern in "air-set sand" and melting out in a kitchen oven at 350 to 400 (F) and then pouring. He said there was no need for long or high temperature burnout.

What is "air-set sand"? Has anyone out there heard of this process?


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