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Posted by Mark on December 28, 1998 at 22:26:26:
I am looking for something I can make a permanent mold for casting some small aluminum and brass objects. While searching I came across a product made by Aremco "Ceramacast 673". Has anyone used anything like this before, or am I wasting my time trying this. If anyone has tried this or has something better please pass it on. I am not trying to get superfine detail but would like as smooth a finish as possible. If the above is not feasible what kind of detail could one obtain with Petrobond. Any help you could provide would be very appreciated.