Outdoor enclosures for telecom equipment are often made from aluminum, but with the protective treatments described in this two-part article series, inexpensive steels can serve in the same capacity. Zinc-based galvanizing and aluminizing treatments, which were presented in Part 1, may be used alone or together with corrosion-resistant paints, pretreatments, and sealants described here. This article also assesses the corrosion resistance and adhesion properties of different combinations of steels, coatings, and pretreatments by means of salt fog spray testing.

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