€¢ Alloy of 50 percent tin and 50 percent lead €¢ 0.125 inch gauge; with a melting range of 361 degrees F-421 degrees F €¢ Contains lead €¢ not for use on drinking water lines €¢ Commonly used for tin plating; seaming joints; copper DWV systems and sheet metal repair >> Alloy of 50 percent tin and 50 percent lead. 0.125 inch gauge; with a melting range of 361 degrees F-421 degrees F. Contains lead. not for use on drinking water lines. Commonly used for tin plating; seaming joints; copper DWV systems and sheet metal repair."