Xingfa Aluminium is the Top 10 aluminium profile manufacturer in China. Xingfa Aluminium provides professional powder coated aluminium extrusions for you. Xingfa black aluminium extrusion has many choices to meet different clients’ requirements with high quality and good performance.
The powder coated means to spray powder on the surface of aluminum extrusion profiles with the help of electrostatic interaction. There is a strong ability or capacity with the coating in aspect of weather resisting spalling resistance and UV resistance. The squeezed aluminum extrusion profiles should be put on a shelf first. Aluminum profiles should be cleaned many times at the pre-treatment zone according to the procedure aiming at the greasy dirts on the surface. Then it should be put into the chromium pool for chromaking. Then the chromated aluminum should be put into a drying oven to dry, then sent into the spray-coating area for powder spraying coated which should be solidified at the temperature of 200 ℃ in a defined time.