Great Resistance to Corrosion

Galvalume sheet demonstrates that it is more resistant than aluminum-coated sheet to corrosion in harsh atmospheres.

The difference in performance is dramatically shown in the photo below. After five years’ exposure in a severe environment, crevices formed by 180-degree flat bends have perforated from interior corrosion on aluminum-coated sheet. On the other hand, the 55% Al-Zn coated sheet remains unaffected. This kind of performance can be especially important for arch panels used on structures in aggressive environments.

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