Thread: Zinc in Lead
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Old October 20, 2012, 10:17 AM   #16
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Join Date: May 3, 2009
Location: Central Texas
Posts: 3,560
If they are already ingots then use a casting thermometer, if it looks chunky, or soupy at 700 degrees then it more than likely is contaminated with zinc. Also if you are not getting proper fill out no matter what you do chances are it has zinc.
No matter how many times you do it and nothing happens it only takes something going wrong one time to kill you.
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