At thhe auto frame plant the heavy weldments were all welded with CO2 and globular transfer. This gives a hot deep penetrating arc, but leaves a mess to clean up afterwards.
The weld deposits were fine, but the weldments did look like someone painted them with super glue then dumped a bag of shot on them.
That was at a well paid, unionised, northern plant that hired no Mexicans and few Portoricans, and those were Yankee farmers & coal crackers doing the weklding...