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Zinc Phosphate Treatments For Painted
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Chromate-free, environment-friendly GALVANIZED STEEL …
www.kobelco.co.jp• When zinc reacts to moisture in the air, it generates white rust. To prevent this, chromate-free and other special treatments are applied to the galvanized sheet. • The time to take for red rust to develop on the base steel is proportional to the amount of zinc coating. 10 20 40 60 80 100 120 150 0 100 200 300 Zinc coating mass (one side ...