Why Are More Perforated Steel Sheets Adopting Electrostatic Powder Coating?

After production, perforated steel sheets typically undergo surface treatments to enhance their corrosion resistance. The transition from traditional spray painting to the now widely adopted electrostatic powder coating (powder spraying) process reflects advancements in technology and growing environmental demands.  
 
Spray painting was once commonly used for surface treatment, offering significant improvements in the durability of perforated steel sheets and a variety of color options. However, due to the generation of large amounts of volatile organic compounds (VOCs) during the process, which severely pollute the environment, its use has been increasingly restricted under stricter environmental regulations.  
 
Electrostatic powder coating has gradually become the ideal alternative to spray painting. This process involves using an electrostatic generator to evenly coat the surface of perforated steel sheets with plastic powder, which is then melted and firmly adhered during high-temperature baking. Compared to traditional spray painting, this method achieves over five times the adhesion strength, faster application, and lower costs. The resulting coating is smooth, pleasant to the touch, and exhibits excellent UV, cold, and heat resistance.  
 
Additionally, the powder materials used in this process, such as acrylic and polyester powders, can be blended to match any color on standard color charts, ensuring ample choices for decorative applications. Its eco-friendly, efficient, and versatile characteristics have made electrostatic powder coating the preferred surface treatment for perforated steel sheets.