The application of industrial aluminum profiles is becoming more and more extensive. In the application, we will have many methods for surface treatment of aluminum profiles, and coloring is one of them. So how should you color industrial aluminum profiles?

Industrial aluminum profiles must first anodize the aluminum profiles. The aluminum alloy profiles extruded by AL aluminum profile manufacturers may have poor surface corrosion resistance when they are just come out from the extrusion line. Therefore they must be processed via surface treatment by anodizing to increase the corrosion resistance and wear resistance of aluminum profile and surface brightness.

1.Surface pre-treatment of industrial aluminum profiles: The surface of the profiles is cleaned by chemical or physical methods to expose the pure substrate, so as to facilitate the acquisition of a good and fine artificial oxide film. Mirror or matt (matt) surfaces can also be obtained mechanically.

2.Anodizing of industrial aluminum profiles: Under certain process conditions, the surface of the pretreated profiles will undergo anodization on the surface of the substrate to form a fine, porous, and strong AL203 film layer.

3.Sealing of industrial aluminum profiles: The pores of the porous oxide film formed after anodization are closed to enhance the anti-pollution, corrosion resistance and wear resistance of the oxide film. The oxide film is colorless and transparent. Using the strong adsorption of the oxide film before sealing, some metal salts are adsorbed and accumulated in the film pores. The surface of the industrial aluminum profile can show many colors other than the original (silver white), Such as: black, bronze, golden yellow and stainless steel, etc.

AL Aluminum Co.,Ltd. is a large-scale enterprise with modern aluminum profile production technology and mold production. We focuses on the custom production of high-quality aluminum profiles and has many years of experience in aluminum profile mold customization. Eagerly looking forward to cooperation with you.