Anticorrosive coating bubble phenomenon analysis and countermeasures

Anti-corrosion coating bubbles, such as coating shrinkage, pinholes, fish eyes and other coating defects, are caused by various reasons. Among them, coating bubbles in steel anti-corrosion coatings are mostly due to construction due to irregularities in the process. The disadvantage of coating bubbles has affected the coating protection and visual inspection of appearance to varying degrees. This article analyzes the specific causes of the defects of coating bubbles, and puts forward relevant countermeasures. In recent years, the steel coating anti-corrosion industry has developed more and more rapidly, and the varieties and grades of coatings have been continuously optimized. The coating construction equipment and methods have also been continuously improved and updated, and the protective and decorative properties of anti-corrosion coatings have been improved. Therefore, the surface state of the coating is very attractive. The existence of bubbles seriously affects the appearance of the coating, often causing shrinkage, pinholes, defects, fish eyes and other ills in the coating film. The problem of coating blistering has not only affected the protective effect of the coating film, but also greatly affected the decorative effect of the coating.