S steeo Member Messages 122 Nov 23, 2008 #1 I have been an amateur welder for a few years now and have always wondered why anything you need to mig weld has to be clean (no paint, rust etc) but if you arc weld it there can be any sort of paint, rust, oil etc within reason on the metal ???
I have been an amateur welder for a few years now and have always wondered why anything you need to mig weld has to be clean (no paint, rust etc) but if you arc weld it there can be any sort of paint, rust, oil etc within reason on the metal ???
shenion Tool Pack Rat Messages 7,586 Location Stone Mountain, GA USA Nov 23, 2008 #2 Must be cleansers and deoxidizers in the flux.
Hitch Moderator Staff member Messages 13,537 Location England Nov 23, 2008 #3 With various technique changes you can mig weld dirty steel to some extent. Especially at the hotter end of the scale.
With various technique changes you can mig weld dirty steel to some extent. Especially at the hotter end of the scale.
