Patent ID: 7704606

Claim:
A method for in-line or end-of line repair of an original basecoat/topcoat finish on an automobile or truck during their original manufacture, in which the original topcoat comprises a substantially cured fluorinated silane polymer, wherein the improvement comprises: (a) incorporating in the original topcoat, an adhesion improving additive comprising a fluorinated urethane compound; (b) applying over said original topcoat, a repair basecoat composition comprising an aminoplast resin crosslinking agent; (c) applying over said repair basecoat, a repair topcoat composition; and (d) curing the new basecoat/topcoat finish, wherein the fluorinated urethane compound consists essentially of an adduct of an organic polyisocyanate, a polyoxyethylene/polyoxypropylene glycol, and a fluorinated monofunctional alcohol, and contains substantially no residual isocyanate groups; or an adduct of an organic polyisocyanate, an amino-functional silane, and a fluorinated monofunctional alcohol, and contains substantially no residual isocyanate groups.