Aluminium alloy construction profiles anodized film how to maintain

[China Aluminum Network] The main reason for the damage of the anodized aluminum alloy film is due to the deposition of grime, which absorbs moisture and is subject to corrosion, especially when the air contains sulfide, it is more prone to corrosion. When the building profile is used for a long time, the surface of the oxide film must be cleaned to prolong its service life.

The periodic cleaning of oxide films is generally six months. The interval can be determined according to the degree of contamination of the environment. When cleaning, both the surface dirt and the anodized film should not be damaged.

The method of cleaning can be based on the degree and size of the oxide film that may have been damaged. For small parts, it is usually wiped gently by hand. For large parts, it is required to dissolve the viscous deposits. After cleaning, it is usually cleaned with hot water containing a suitable lubricant or a neutral soap. Fiber brushes can also be used to remove the attached dust. It is not allowed to use sandpaper, wire brushes or other friction materials, and it is not allowed to use acid or alkali for cleaning so as not to damage the anodized film. After cleaning, wash with clean water, especially where cracks and dirt are present. Use a soft cloth dampened with alcohol to scrub, and use an advantageous wax to polish the anodized film later.