The powder coated aluminum sheet coil are processed by spray the powder coating onto the exterior of the aluminum by powder spraying device (electrostatic spray machine). There are many types of powder coating processes. Under the action of static electricity, the powder paint will be uniformly adsorbed on the surface of the aluminum sheet coil to form a powder coating layer, the powder coating layer will be cured by high temperature baking and leveling, and the final coating with different effects of powder coating is processed.
Powder coating spray has great effect on mechanical strength, adhesion, corrosion resistance, aging resistance, etc. And it is superior to the old painting process, and the paint with the same effect is lower in cost. The color coated aluminum usually has higher price than powder coated aluminum. Advantages of powder coating aluminum compared to traditional paint processes are:
1. Efficient: One-time film formation can increase productivity by 30-40%;
2. Energy saving: reduce energy consumption by about 30%;
3. Less pollution: no organic solvent volatilization (excluding harmful gases such as toluene and xylene in paint coatings). Powder coating is a new solvent-free 100% solid powder coating. It has the characteristics of no solvent, no pollution, energy and resources, lighter labor intensity and high mechanical strength of coating film.
4. High utilization rate of paint: The powder coated aluminum can be reused multiple times after recycling, and the utilization rate is over 95%.
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