VSK-12L water-based nano-coating is a water-based electrostatic spraying nano-coating. After degreasing and chromizing the surface of aluminum profiles, water-based electrostatic spraying can be used directly to achieve the effect of anodizing and coloring. The appearance of the product after nano-spraying is similar to that of the anodized product, and its performance fully meets the national standard GB/T52375-2017, and it has a QUV resistance of more than 4000 hours.