1, the purity is higher, its corrosion resistance is better, as everyone knows, pure aluminum react with oxygen in the air, can produce dense natural oxide film with a thin layer of the aluminum surface, than other metal oxide film generated fast and thick, so as to prevent the corrosion of harmful gas and moisture in the air, to protective effect.
2, the corrosion resistance of pure aluminum is good, but the poor mechanical strength, which restrict the application of aluminum, to a certain extent, therefore, the people joined the amount of magnesium, copper, zinc and other metals in aluminum is made of aluminum alloy, various types of aluminum alloy, the mechanical strength is high, the mechanical strength of aluminum greatly improve, application scope greatly expanded, aluminum alloy is of high mechanical strength, corrosion resistance than the pure aluminum is poor, so it is possible and subject to corrosion by oxidation. This requires a powder coating to protect aluminum alloy profiles, aluminum alloy with its small weight, easy processing, high mechanical strength over the years are widely used in the building doors and windows, curtain wall products. ,
After the Ji'nan fluorocarbon coating, corrosion resistance, color aluminum profiles with higher diversification, the surface texture of a good many advantages, echoes with the different building external wall coating, in order to build a colorful building.