FIELD: metallurgy.
SUBSTANCE: coating includes two layers. The first coating layer is deposited from the first coating composition containing the following: (i) compound of metal of group IIIB, compound of metal of group IVB or their combination. The second coating layer is deposited from the second coating composition containing the following: (a) resin with reactive functional groups, which contains ionic saline group with active hydrogen, (b) linking agent showing reaction activity in relation to at least one of reactive functional resin groups, and (c) soluble alkali-earth metal that is contained in the quantity of not more than 1000 p/mln in terms of total weight of the second coating composition.
EFFECT: invention allows reducing mapping of a coating layer applied to a substrate.
21 cl, 4 ex
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