Always read the label for ingredients of the solvent used in the ultrasonic. Phosphoric acid is bad for steel, it will remove the blue, Sodium hydroxide is bad for aluminum parts, it will remove the anodize finish and etch polished parts. Ask me how I know? You almost need two different ultrasonic cleaners. I use a sodium hydroxide based engine cleaner I get from AutoZone in my ultrasonic cleaner for steel parts but lesson learned, I don't put aluminum framed firearms in it. Aluminum framed guns/parts get the brake cleaner and tooth brush treatment.I would not use vinegar on any firearm.
It is very acidic with a pH of 2 to 3 and may be a little too corrosive.
I use Simple Green on lots of stuff and buy it by the gallon jug.
That's just my worthless opinion.![]()
Diluted Simple Green Aircraft. It won't dull aluminum like regular Simple Green and many others.
The hardest part is getting ok with throwing your gun in the water.