Patent ID: 7163446

Claim:
A method of restoring a discolored vehicle headlight lens without removal of the lens from the vehicle, comprising in combination the ordered steps of: (a) wet abrading an outer surface of the lens with successively finer grit abrasives until a smooth surface is achieved exhibiting no visible discoloration remaining; (b) polishing the outer surface of the lens with an aqueous paste abrasive polish; (c) cleaning any residue from the outer surface of the lens; and (d) applying a sealer comprising a film forming aqueous polymer dispersion containing an ultraviolet protectant to the outer surface of the lens, wherein the wet abrading, the polishing, the cleaning and the applying are carried out while the headlight lens remains attached to the vehicle, wherein the sealer comprises an aqueous dispersion containing acrylic urethane copolymers, a hindered amine UV protectant, a benzotriazole UV protectant, 1-methyl-2-pyrrolidone and dipropylene glycol monomethyl ether.