| 摘要 |
PROBLEM TO BE SOLVED: To provide an inexpensive non-chromium anticorrosive coating having more excellent corrosion resistance than that of a chromium-containing anticorrosive agent, and to provide a method for an anticorrosive treatment. SOLUTION: This anticorrosive coating contains one or more kinds of compounds selected from thiosulfate salt compounds and persulfate salt compounds in a total amount of 0.1-20 g per liter of a composition containing an aqueous resin and water as main components. The anticorrosive agent further preferably contains 0.1-5 g of phosphate ions. The method for the anticorrosive treatment comprises coating the above coating on a steel sheet coated a zinc- based coating or on a non-coated steel sheet. An anticorrosive metal is coated with the above anticorrosive coating.
|
