Why do LED light kit aluminum profiles need surface treatment?

LED Light Kit Aluminum is a light metal with a silvery white luster, and its corrosion resistance has the following two characteristics:

1. The higher the purity, the better the corrosion resistance. As we all know, pure aluminum interacts with oxygen in the air, and a thin and dense natural oxide film will be produced on the surface of aluminum, which is faster than other metal oxide films. It is much thicker, thus preventing the corrosion of harmful gases and moisture in the air and playing a protective role.

2. Although the corrosion resistance of pure aluminum is good, the mechanical strength is poor, which restricts the application of aluminum to a certain extent. Therefore, people add appropriate amounts of magnesium, copper, zinc and other metals to aluminum to make various types of aluminum. The high mechanical strength of aluminum alloy greatly improves the mechanical strength of aluminum and greatly expands the application range. Although aluminum alloy has high mechanical strength, its corrosion resistance is worse than that of pure aluminum, so it may be corroded by oxidation. This requires powder coating to protect aluminum alloy profiles. Aluminum alloys have been widely used in building doors, windows, curtain walls and other products for many years due to their small specific gravity, easy processing, and high mechanical strength.

After surface treatment, aluminum profiles have many advantages such as high corrosion resistance, diverse colors, and good surface texture. They echo with different building exterior paints to build colorful buildings.