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Search: Posts Made By: Cheechako
Forum: Construction, Maintenance & Refit 13-06-2021, 09:11
Replies: 18
Views: 3,338
Posted By Cheechako
Re: Aluminum beam repaint. Sand in epoxy or use zinc chromate first?

I guess you are using the word "plate" liberally, but just to be clear, Anodizing is not a plating. It's the intentional creation of protective oxide layer from the aluminum itself.
Forum: Construction, Maintenance & Refit 06-06-2021, 12:44
Replies: 18
Views: 3,338
Posted By Cheechako
Re: Aluminum beam repaint. Sand in epoxy or use zinc chromate first?

Be sure to get real 2 part Zinc Chromate primer. That one part stuff is a joke...
Forum: Construction, Maintenance & Refit 06-06-2021, 09:26
Replies: 18
Views: 3,338
Posted By Cheechako
Re: Aluminum beam repaint. Sand in epoxy or use zinc chromate first?

Are you sure it was anodized? DONT sand it! Leave it bare. Sanding the anodized finish is destroying the best aluminum protection scheme there is.
The standard acid wash, Zinc Chromate, etc is...
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