The present invention relates to a coating composition comprising (d) at least one binder (A) having reactive groups, (e) at least one crosslinking agent (B) which is able to react, with crosslinking with the reactive groups of the binder (A), and at least one catalyst (C) for the crosslinking of silane groups, one or more constituents (A) and/or (B) and/or at least one further constituent of the coating composition containing hydrolyzable silane groups, wherein the catalyst (C) is a phosphoric acid compound, more particularly phosphoric acid or phosphonic acid, which is blocked with an amine having a pKb≧3 and a boiling point >100° C.