A better and cheaper copper rod is Harris “O”. Not as much silver
but still will give good welding on copper. It is a phos-copper rod.
If you just weld it and do not grind it, it looks just like copper.
If you remove the top film then is a darker like nickle color. Will
patina the same as copper. Harder than copper and will crack if
hammered or bent. Comes in the standard gas welding rod length (30")
and for 3/32 about $10.00 a pound.
Trenton, MI 48183