The protective value of the coating depends largely upon the integrity of the conStinuous layer of overlapping flakes or scales of abstract oil paintings metal. If the layer is ruptured, the protective value of the coating is lost, and corrosion and disintegration of the material underlying the layer can ensue.
Because eventual rupture of the continuous layer of overlapping metal flakes is almost inevitable, it has been the heretofore animal oil paintings customary practice first to apply a priming coat which will offer protection to the underlying surface in the event of a break in the metallic paint applied over the priming coat. Such priming coats usually contain a pigment having corrision-inhibiting properties, by which I mean the ability to protect metal upon which the pigment is applied even in the event that small portions of the metal become exposed.
As a result of my investigations I have discovered that relatively large proportions of corrosion-inhibiting pigments may be incorporated directly into a metallic paint, with the result that while the paint is still figure oil paintings liquid they form a corrison-inhibiting film underneath the layer of overlapping metal plates but are completely obscured by the layer, so that in effect the priming coat and the finishing coat are applied together and afterward separate of themselves; the separation being sufficiently complete that the priming coat is completely obscured by the metallic coat. The labor employed heretofore to apply the priming coat separately is thus eliminated, | without sacrificing the additional protection which the priming coat affords. The corrosioninhibiting pigments which I employ in the practice of my invention are those which manifest little or no tendency to "float" out of the vehicle into which they have been incorporated, with the result that they remain underneath while the metal flakes "float" to the surface to form the desired lustrous coating.
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