Powder coating involves applying powder paint to the surface of workpieces using a spray gun. Under the effect of static electricity, the powder evenly adheres to the surface of the workpiece, forming a powder-like coating. This powder coating is then baked at high temperatures to flatten and cure, resulting in coatings with various effects. The spray effect of powder coating surpasses that of paint in terms of mechanical strength, adhesion, corrosion resistance, and aging resistance, while also being more cost-effective than paint with the same effect.

Powder coating utilizes the principle of electrostatic spray painting to adhere dried powder to aluminum extrusions. After being baked at a temperature above 200°C, the powder cures into a sturdy, glossy coating with a thickness of approximately 60 micrometers. This results in a product surface that is flat, smooth, and evenly colored, with strong resistance to acidity, alkalinity, impact, and abrasion. The coating can withstand intense UV radiation and acid rain without showing signs of flaking, fading, or peeling. Aluminum extrusions with powder coating have a lifespan of up to 30 years under normal conditions. The surface coating guarantees no fading, discoloration, or cracking for 5 to 10 years. It boasts superior weather resistance and corrosion resistance compared to standard aluminum materials, with a diverse range of colors available.