Am I allowed to weld over paint? Or do I have to remove it? What about primers and paints that claim to be “weldable”?

The breathing zone of welding personnel may contain fumes from a combination of base and filler metals as well as surface coatings including paint in some cases.  All of these ingredients mix in the heat of the weld puddle with air-borne particulate forming the fume that can be seen as a plume rising from the weld area.


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