Acids for removing oxididation?
I was reading about metal oxidation recently (black oxidation spots on some of the restos I'm undertaking are my nemesis, not rust. I want them gone and don't want to sand them out) and came across a few places that said that specifically hydrochloric and oxalic acids chemically react with oxidation on steel essentially neutralizing it and cleaning it off.
Has anyone tried this? Josh Earl is purposely acid etching some of his blades which from the photos seems to GIVE an patterned oxidized look. I want no oxidation. I think I can get some oxalic acid easily but want to know if it could really be the wipe on wipe off oxidizer remover.
I have some old wedges that I can polish to a mirror shine on the buffer or in the corn cob with chrome ox, but as many of you are familiar, no matter how utterly polished and mirror I can get those blades, there are still the black, gun metal gray random "splashes" of oxidation that won't go away.
Any thoughts before I start to experiment?
Chris L