Carbon buildup with my 210 on AL

[Paul Seaman]

Acetone is the best I've found but I use Isopropyl alcohol also since it is so much cheaper. If I have alot to weld I use the alcohol. I get some spatter and soot on the welds but I've read this is to be expected. I use 4043 wire and argon gas at 20-30cfh look at the chart but I rarely ever go above the listing unless its overhead position. I know there is some aerosol cleaner made by permatex that I've seen but can't remember the number.

I beleieve if the weld looks good and is deep enough then wipe it with acetone and call it done!