Len & Jonathan , thanks for the replies. I have not tried 95/5 or straight argon but I easily could on the next project. I don't have any pics but will start taking them for reference. The metal thickness can vary from .032 to .075 depending on application - automotive, AG , truck step tank , et...

Artie,thanks for the quick reply. I am using er70s6 wire. It welds great- when it comes to joining two pieces of metal it's fine. But when welding something that has to hold pressure there are gobs of porosities. I have talked with welder salesmen, welding supply salesmen, as well as professional we...

Greetings , I am having porosity problems when mig welding thin steel containers such as fuel tanks. If I cut out a rusted area and tig repair it there is seldom a leak. When I mig weld in a repair the welds have leaks all over. I have not been able to pin down the issue - wire, welder, tecnique , e...