pewter casting


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Posted by Harold on March 06, 19100 at 16:54:59:

I'm trying to cast small pewter medallians with detail similar to a state seal; an image with lettering around. I've tried rtv molds but they provide no detail, maybe a gas venting problem? Also tried sand mold which was a bit more successful but left a grainey texture and some detail loss.

I have no high temp facilities at this time so I'm limited to low temp alloys.

Any suggestions or comments on how to accomplish this project?

Thanks, Harold

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