INSTANT GUN BLUE
44/40's familiar bluing action is almost magic. Simply dampen a patch with 44/40, wipe it on and wipe it off immediately with a dry one. The coloring action happens instantly and the color penetrates deep into the metal for a long-lasting finish. There's no need to soak or rub for long periods. Surface preparation's easy, too. For scratches, just clean and degrease as you normally would and apply 44/40. Will do the job beautifully.