Anodized surface treatment is unlike surface coated technology, it's pass through acid electrolyte, so the anode aluminum panel surface oxidation, and comformed a thick protective film, which won't fall off.
It is known that, the outdoor use aluminum live lifetime depends on the surface treatment, using the PVDF coated the lifetime can last to 30 years, but it's expensive. So, the anodized panel it's another choice, which live lifetime up to 20 years.
Function of anodized aluminum panel:
1. surface: can wire drawing;
2. color: tan color, champne, rose...
3. lifetime: 15-20 years guarantee