On Jul 19, 8:52*am, Smitty Two wrote:
In article
,
*Bob Villa wrote:



Didn't I say "try a sample area"? Do you know that it won't work?

My experience with bluing in the machine shop says it won't work, and a
bit of googling more or less confirms that, although I did just find
some references that say if stainless is acid etched it can be hot blued.

Gun bluing is not the same as bluing used in a machine shop (which IS
blue). Gun "blue" is black.