Composition and method for treatment of phosphated metal surfaces
AssigneeArdrox Inc.
InventorGeorge J. Gorecki
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Abstract
A rinse solution for the treatment of conversion-coated metal substrates for improving the adhesion and corrosion resistance of siccative coatings, comprising an aqueous solution of zirconium ion and an organosilane selected from the group consisting of 3-glycidoxypropyltrimethoxysilane, methyltrimethoxysilane, .gamma.-methacryloxytrimethoxysilane, phenyltrimethoxysilane, and mixtures thereof, with the zirconium ion concentration selected to provide a pH about 2.0 to 9.0. A method for treating such materials by applying the rinse solution to the substrate.
Claims20
A rinse solution for the treatment of conversion-coated metal substrates for improving the adhesion and corrosion resistance of siccative coatings, comprising an aqueous solution of zirconium ion and an organosilane in a concentration of about 0.1 to 6.0% w/w and selected from the group consisting of 3-glycidoxypropyltrimethoxysilane, methyltrimethoxysilane, .gamma.-methacryloxytrimethoxysilane, phenyltrimethoxysilane, and mixtures thereof, with the zirconium ion concentration selected to provide a pH for the entire solution about 2.0 to 9.0.
In a method for treating conversion-coated metal substrates for improving the adhesion and corrosion resistance of siccative coatings, wherein the improvement comprises:
- providing an aqueous solution of zirconium ion and an organosilane in a concentration of about 0.1 to 6.0% w/w and selected from the group consisting of 3 -glycidoxypropyltrimethoxysilane, methyltrimethoxysilane, .gamma.-methacryloxytrimethoxysilane, phenyltrimethoxysilane, and mixtures thereof;
- selecting the zirconium ion concentration to provide a pH of the solution of about 2.0 to 9.0;
- and
- applying the solution to the substrate.
Dependencies are inferred from the claim text.