Looks like rust
Plasma cutter exhaust vent. Concrete wall. Oxalic? Muriatic? Back away slowly? Never dealt with Plasma exhaust and can't find any info. I'm guessing treat it like regular rust but not a fan of guessing. Thx in advance.
Plasma cutter exhaust vent. Concrete wall. Oxalic? Muriatic? Back away slowly? Never dealt with Plasma exhaust and can't find any info. I'm guessing treat it like regular rust but not a fan of guessing. Thx in advance.