1, the higher the purity, the better the corrosion resistance, it is known, aluminum with oxygen in the air role in the aluminum surface will produce a thin layer of dense natural oxide film, other than the metal oxide film generated fast and more thick, thereby preventing harmful gases in the air and moisture corrosion, play a protective role;
2, the corrosion resistance of aluminum is good, but poor mechanical strength, which to some extent, restricted the application of aluminum, so people in the aluminum adding an appropriate amount of magnesium, copper, zinc and other metals to produce various types of aluminum, high mechanical strength aluminum alloy, the mechanical strength of the aluminum greatly improved greatly expanded range of applications, although the mechanical strength aluminum alloy, but poor corrosion resistance than aluminum, so it is possible to corrosion due to oxidation. This need for powder coating on Aluminum Alloys to protect, aluminum for its proportion of small, easy processing, mechanical strength and other characteristics are widely used for many years building windows and doors, curtain wall and other products. ,
After powder coating, aluminum has a high corrosion resistance, color diversification, good surface texture and many other advantages, with different exterior house paint echoes to build a colorful buildings.
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