| how to blacken steel to prevent rust?
Black Oxide is a protective superficial treatment made with a blend of caustic, oxidizers, additives that is used to black oxide ferrous metals and protect them from rust and corrosion.
There are two different process for Blacking a metal: an hot process and a room temperature process.
source:
http://www.epi.com/pages/black-oxide-faq
You can buy black oxide kit to blacken metals at your home:
http://www.caswellplating.com/kits/black.htm |