I think this is an excellent question. I have wondered myself, just how much protection from rust can be expected from a patina, natural or forced?
Originally Posted by VictorLouis
I also think that cold bluing a blade is really just another coating, much like a forced patina. I would be surprised to see if it offers any protection. I believe that it is more of a cosmetic treatment than a protective one.
Have there been any actual tests of patinas and cold bluing to establish them as a protection from rust?
Double Ott aka; Tom; TC
Vintage PUMAs from the 1970's & 1980's.. Let me know what you have, Thanks