How Does Aluminum Coils’ Corrosion Resistance Outperform Steel?
Outdoor constructions face harsh elements like moisture, salt spray, and acid rain, making corrosion resistance critical. Steel rusts within 3-5 years without galvanization, demanding annual maintenance costing $1.10/㎡ for re-coating or replacement. Aluminum coils, however, are naturally corrosion-resistant.
When exposed to air, aluminum forms a 5-10 micrometer dense oxide film that acts as a protective barrier. Coating with PE or PVDF enhances this resistance, extending outdoor lifespan to over 15 years. Over a decade, aluminum’s virtually maintenance-free nature cuts costs by more than 60% compared to steel. For coastal or high-moisture projects, aluminum coils’ durability is unbeatable. Click here to know more.
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