Why does my Power Fist 8785115 have porosity?
- TTravis GibsonAug 15, 2025
Porosity, characterized by small cavities or holes in the weld metal, can occur for several reasons. First, the arc length might be too long, in which case you should shorten it. Second, the workpiece may be dirty, contaminated, or contain moisture; remove any moisture, paint, grease, mill scale, oil, or dirt from the base metal. Finally, damp electrodes can cause porosity, so ensure you're using only dry electrodes.