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topic 9829

White rust removal


(2001)

I need to know how can I remove the white rust from hot dip galvanized steel?

Yehea Mohamed Tawfik
- Cairo, Egypt


(2001)

When/if you remove the white rust you are left with, at best, a less satisfactory coating.

But the white rust corrosion product is extremely voluminous and the actual loss of galvanizing protection may be less than it looks like. if you search this site with the search term 'white rust galvanizing' you will find some recommendations for stripping the white rust with phosphoric acid and then painting.

Ted Mooney, finishing.com Teds signature
Ted Mooney, P.E.
finishing.com
Pine Beach, New Jersey


(2006)

Please advice us on white rust removal for 3mm sheet of grade fe-410.

Jeetu [last name deleted for privacy by Editor]
cold rolling - Thane, Maharshtra, India



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