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Black natural finish for steel or iron exterior building parts




I am building a custom Arts/Crafts building and using exposed steel connectors and straps.
What are suggestions for a "natural, black" finish. Some connectors are on exterior.

Edward Van

2006



Try 20 gm tannic acid [this product on eBay or Amazon affil links] /15 gm phosphoric acid/ 1 lit water(do it yourself rust converter [this product on eBay or Amazon affil links] ). It must be clearcoated (Everbrite [a finishing.com supporting advertiser]). Good luck and hope it helps!

Goran Budija

2006




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