FIELD: chemistry.
SUBSTANCE: invention relates to coating materials compositions. Disclosed is a coating material composition comprising a) at least one polyhydroxyl-containing component (A) selected from polyester polyol, polyacrylate polyol and/or polymethacrylate polyol and copolymers thereof, b) at least one component (B) having on average at least one isocyanate group and at least one hydrolysable silane group of formula (I) and/or at least one hydrolysable silane group of formula (II); c) at least one phosphorus- or nitrogen-containing catalyst (D) for cross-linking silane groups and d) at least one catalyst (Z) for reacting hydroxyl groups with isocyanate groups, selected from a group comprising zinc and bismuth carboxylates, aluminum, zirconium, titanium and/or boron chelates and / or inorganic, tin-containing catalysts and mixtures thereof , wherein the coating material composition contains at least one reaction accelerator (R), which is selected from a group which includes inorganic acids and / or organic acids and / or partial esters of inorganic acids and / or partial ethers of organic acids. Invention also discloses a multistage coating method and a multilayer paint system using said coating material composition. -NR-(X-SiR''x(OR')3-x) (I), -N(X-SiR''x(OR')3-x)n(X'-SiR''y(OR')3-y)m (II).
EFFECT: technical result is the disclosed coating composition is easy to manufacture, has good reproducibility and does not cause environmental problems during application of coating materials.
17 cl, 2 tbl, 2 ex
