Should have said it was a cheap no gas flux core on lowest settings . Actually turned the settings up and run a thick slug over it but not sure if it was fluke that time !
I am a novice and fixing a exhaust pipe. Steel prob 1mm thick and burnt a small hole. I welded over this and then let cool and welded again a few times. My question is what is the right way to try and cover a small burn through right as I dont know what I done but it seemed to work