BEHANDLUNGSMITTEL FÜR METALLOBERFLÄCHEN UND DAMIT BESCHICHTETE METALLISCHE MATERIALIEN

摘要

A metal surface treatment agent comprising the following components (A) to (D), which securely adheres to a metal substrate such as aluminum, exhibits excellent corrosion preventive properties even with a thin film thickness, and has excellent plasticity and adhesion to paints. (A) at least one type of organosilicon compound having three carbonyl groups and at least one alkoxysilyl group, in a weight ratio of 5 to 15 when the total of the components (A) to (D) is 100; (B) at least one type of epoxy resin modified with an alkanolamine, in a weight ratio of 10 to 30 relative to the above total; (C) at least one blocked polyisocyanate, in a weight ratio of 50 to 70 relative to the above total; and (D) at least one type of amino resin in a weight ratio of 5 to 15 relative to the above total.