Aluminum profile has been widely used in doors, windows, curtain walls and other commodities of buildings for many years due to its small proportion, easy processing, high mechanical strength and other characteristics. Aluminum is a vivid light metal with silver white luster, and its corrosion resistance has the following two characteristics:

The higher the purity is, the better the corrosion resistance is. The main reason is that pure aluminum reacts with oxygen near the air, producing a thin and dense natural oxide film on the aluminum surface, which is faster and thicker than other metal oxide films, thus preventing further corrosion of harmful gases and moisture in the air and playing a protective role.

Aluminum profiles have high mechanical strength, but low corrosion resistance. Although the corrosion resistance of pure aluminum is good, its mechanical strength is poor, which restricts the use of aluminum to a certain extent. For this reason, we participate in appropriate magnesium, copper, zinc and other metals in aluminum to make various types of aluminum alloys, which greatly improves the mechanical strength of aluminum and greatly expands its application range, but its corrosion resistance is worse than that of pure aluminum, so it can be corroded due to oxidation. This requires powder coating to protect aluminum alloy profiles.

In addition to high corrosion resistance, the powder coated aluminum profile also has many advantages, such as diversified colors, good surface texture, etc. It takes care of various colors of building exterior wall coatings and has a different building personality.

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