Abstract: A curable composition and process of applying the composition and the resulting composite coatings provide improved resistance to acid etch and mar. The curable composition has (a) about 30 to 90 percent by weight, based on total weight of resin solids, of a film-forming composition selected from the group consisting of: (i) a polyepoxide and a polyacid crosslinking agent; (ii) an acrylosilane polymer, an acrylic polyol polymer, and optionally an alkylated melamine-formaldehyde crosslinking agent; and (iii) a polyisocyanate and a polymer having at least one group that is reactive with isocyanate; and (b) about 10 to 70 percent by weight, based on total weight of resin solids, of a tricarbamoyl triazine compound of the formula: C3N3(NHCOXR)3 wherein X is nitrogen, oxygen, sulfur, phosphorus, or carbon, and R is a lower alkyl group having 1 to 12 carbon atoms, or mixtures of lower alkyl groups.

Abstract: A curable composition and process of applying the composition and the resulting composite coatings provide improved resistance to acid etch and mar. The curable composition has (a) about 30 to 90 percent by weight, based on total weight of resin solids, of a film-forming composition selected from the group consisting of:(i) a polyepoxide and a polyacid crosslinking agent;(ii) an acrylosilane polymer, an acrylic polyol polymer, and optionally an alkylated melamine-formaldehyde crosslinking agent; and(iii) a polyisocyanate and a polymer having at least one group that is reactive with isocyanate; and(b) about 10 to 70 percent by weight, based on total weight of resin solids, of a tricarbamoyl triazine compound of the formula: C.sub.3 N.sub.3 (NHCOXR).sub.3, wherein X is nitrogen, oxygen, sulfur, phosphorus, or carbon, and R is a lower alkyl group having 1 to 12 carbon atoms, or mixtures of lower alkyl groups.

Abstract: A process for applying a color-plus-clear composite coating to a substrate is provided. The process comprises applying to the substrate a pigmented or colored film-forming composition to form a base coat and applying to the base coat a transparent film-forming composition to form a clear coat over the base coat. The base coat comprises a resinous binder; a tricarbamoyl triazine compound having the formula C.sub.3 N.sub.3 (NHCOXR).sub.3, wherein X is nitrogen, oxygen, sulfur, phosphorus, or carbon, and R is a lower alkyl group having 1 to 12 carbon atoms, of mixtures of lower alkyl groups; and a pigment to act as the colorant. In a second embodiment of the invention, the base coat comprises a resinous binder, a capped polyisocyanate, and a pigment; and the clear coat comprises a polyepoxide and a polyacid crosslinking agent.