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Ted Mooney, P.E. RET
Pine Beach, NJ
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for Metal Finishing 1989-2024
Thread 224/57
Galvanic corrosion of rivets
We are putting up a perforated, powder coated aluminum (Type 1200 h4) windscreen (approx. 100 meters x 6 meters high) fixed to a painted hot dipped galvanized mild steel frame work. The aluminum sheets (8x4) are riveted to the frame. We have to drill after galvanizing. What practical solutions are there to address galvanic corrosion issues? This screen is approx. 500 meters from the sea.
Ross CowingBryco Metals - Sunset Beach, Cape Town, South Africa
2003
publicly reply to Ross Cowing
You can coat the exposed areas by using cold galvanizing compound Cold Galvanizing Compound / Zinc Rich Paint with high Zinc deposition ideally over 85%.
A high Gloss Cold Galvanizing coating is preferred as it also has excellent flexibility and scratch and chemical resistance
The product can be brushed applied or sprayed depending on the viscosity of the product.
Rishi Prakash- Mumbai, India
2003
publicly reply to Rishi Prakash
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