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topic 4807

Verdigris - zinc


(2000)

Can anyone tell me how I can speed up the process of verdigris on zinc to achieve the green patina one sees on aged zinc clad rooftops. Best regards James Fox

james Fox
- london england


(2000)

James, unfortunately it's gonna take until pigs fly. Verdigris green patina occurs on copper roofs, not on zinc ones, because the green color is a copper salt. Zinc roofs just eventually rust when the galvanizing wears off. Sorry.

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



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