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Old March 27, 2011, 06:35 AM   #2
Senior Member
Join Date: August 1, 2007
Location: Tabor City , NC.
Posts: 1,966
M rat

If ya let the melt sit & cool to say 600-650f does it have a bit of oatmeal consistentcy on top ????

If it does you could be fighting zinc contamination !

I would get some of that leadfree solder & add a 8" peice to 1# of melt & see if it helps if it does carry on , if not pour ya some fishing weights for ya buddies .

Ya can go to the big builders stores & buy it by the lb., I can remember when it first came out "leadfree" for $6.00 !!

If ha have some ingots that have stayed extra shiney there hi in tin & antimony & should help a tin deplited melt.

Good luck !!
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