Waterborne coating wet on wet with wet electrophoretic paint

Abstract

The invention relates to a waterborne coating wet on wet with a wet electrophoretic paint. The waterborne coating wet on wet with the wet electrophoretic paint contains, by weight, 40-70% of acrylic resin, 0.1-0.3% of defoaming agent, 0.2-0.5% of dispersant, 2-20% of pigments and fillers, 5-10% of solvent, 4-14% of amino resin, 0.1-0.5% of leveling agents and 5-15% deionized water, wherein the acrylic resin is a hydroxy acrylic dispersion with 2-6% of hydroxyl and the amino resin is methyl etherified melamine resin. By using the method, the prepared waterborne coating wet on wet with the wet electrophoretic paint has the advantages of not only synthesizing salt spray resistance of the electrophoretic paint but also guaranteeing weatherability of acrylic acid, and saving energy meanwhile.

Description

[technical field] [0001] The invention relates to water-based paints, in particular to water-based paints that are wet-on-wet with wet electrophoretic paints. [Background technique] [0002] As one of the industry-recognized coatings with good adhesion and good salt spray resistance, electrophoretic paint not only has good salt spray resistance, but also has a smooth, smooth and full surface. It has become the first choice for the automobile, motorcycle and tricycle industries. No matter spraying solid color paint or silver paint on it, a relatively perfect and smooth dry film can be presented. However, the yellowing resistance and poor weather resistance of electrophoretic paint also limit its development. [0003] If we match electrophoretic paint with water-based acrylic paint, spraying a layer of water-based paint after electrophoresis can protect the electrophoretic paint, so as to realize the complete superposition of the properties of the two paints. After electropho...

AI Technical Summary

Problems solved by technology

[0002] As one of the industry-recognized coatings with good adhesion and good salt spray resistance, electrophoretic paint not only has good salt spray resistance, but also has a smooth, smooth and full surface. It has become the first choice for the automobile, motorcycle and tricycle industries. Whether it is sprayed with solid color paint or silver paint, it can present a relatively perfect and smooth dry film. However, the yellowing resistance and poor weather resistance of electrophoretic paint also limit its development.

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