(under subclass 331) Processes wherein the coating is contacted by an oil or by a wax to treat the coating.
(1) Note. The oil usually floats on top of a molten metal coating bath and the base is withdrawn through the oil. The base also contacts the oil when being dipped into the bath, but the purpose of the oil is for post-treatment and not pretreatment.
(2) Note. The oil or wax must be used to treat the coating and not intended to be a second coating.
SEE OR SEARCH THIS CLASS, SUBCLASS:
416, for applying plural diverse coatings wherein one coating contains wax.
417+, for applying plural diverse coatings wherein one coating contains oil.
