Posted by John Dach on December 01, 1998 at 23:40:33:

In Reply to: Re: lost wax bonze casting problem posted by Jerry Vaughan on November 21, 1998 at 13:30:35:

Jerry,

Another thing that you might think about is temp of the shell or the investment. With Ceramic shell we have found that a cooler shell (700-900F [estimated]) has helped with sucking, "spongy" metal. I have a feeling, however, that longer burnouts will fix you problem.

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