Chromium-free anticorrosion treatment solutions containing oxidizers, aluminum complexing agents and corrosion inhibitors
Résumé
An anti-corrosion soln. that is free of chromium in any oxidn. state, comprises at least one chem. oxidizing compd., at least one aluminum complexing agent, at least one corrosion inhibiting compd., and optionally, a chem. sealant compd., the soln. having a pH of 1-5. A method for treating a metal surface comprises the application, on the surface, of the anticorrosion soln. in order to form a coating of a metal surface.