Thank you very much for the replys. I got myself a new stainless steel brush and some acetone today. Everything clean and still gave some of the weird spickles, I turned up the gas to around double the cfh, and that made a big difference. All looked clean now. When I hit the filler rod, or the Alu w...

Hi people of the welding world, About a year ago I started TIG welding with an old Morellise Weldboy eg251 machine. Everything I did so far was steel, but a recent project requires aluminum welding. So I thought let’s give it a try. It’s an old machine so first thing I do is balding the (turquose) t...