OUC204-12 3/4 Insert Bearing
Black oxide has certain properties and characteristics that makes it ideal for
certain applications.It is used to add mild corrosion resistance and for appearance
Black oxide is a conversion coating for ferrous materials, copper and copper based
alloys, zinc,powdered metals, and silver solder and is a conversion coating formed
by a chemical reaction produced when parts are immersed in the alkaline aqueous salt
solution operated at approximately 285 degrees F.
To achieve maximum corrosion resistance the black oxide must be impregnated with oil or
wax.One of its advantages over other coatings is its minimal build up.