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Corrosion between anodized aluminium sheet and galvanised steel frame.

June 3, 2008

Hello all

I'm an architect working in the UAE at a sea side location with high salt content in the humid air here. I'm wanting to fix a bronze anodized aluminium decorative screen to a galvanised steel frame where both elements are horizontal over a roof top water tank so that rainwater (in the five days a year that it does rain)could sit between them.

Is there a problem with the Galvanizing corroding? Should I separate them with a nylon washer or will moisture still cause problems?

Regards

Matt Brindley
Architect - Al Raha Beach Development

June 3, 2008

Hi, Matt. The nylon washer will solve the galvanic corrosion problem.

Regards,

Ted Mooney, P.E.
Striving to live Aloha
(Ted can offer longterm or instant help)
finishing.com - Pine Beach, New Jersey

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