Does galvanization protect metals from strong acids?
standard galvanization uses zinc as a coating. What this does is since zinc is a more reactive metal, it will react before the iron in a nail. It acts like an “oxidation sink” for the corrosion reaction. Now, this being said, the actual acid used is important if you are worried about the iron nail dissovling. Placing a galvanized nail in any inorganic acid, and specifically strong acids, will cause the zinc coating to react, liberating hydrogen gas in the process. Once the coating is gone, then the acid, if it is of the correct type, will attack the metal itself.
