SRA Soldering Products WBC96/432   Lead Free Acid Core Silver Solder, 96/4 .032-Inch, 1-Pound Spool Excellent quality general purpose solder Acid Core Solder has a highly active flux for common metals For use on highly oxidized and difficult to solder metals Residue is corrosive and must be washed with hot water. Works with Stainless Steel Melts at 430DegreeF(221DegreeC)