Sound technical content, curated with aloha by
Ted Mooney, P.E. RET
Pine Beach, NJ
The authoritative public forum
for Metal Finishing since 1989
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Preventing Corrosion on Outdoor Spiral Stairs
2001
I want the most durable spiral outdoor stairs for the Michigan Environment. Please suggest what choice I can used to prevent the rust and degradation on outdoor metal stairs.
Remembering that I want the least expensive solution which will prevent the rusting in our climate.
It must be painted Black
Should I:
- Buy Steel stairs and galvanize and then paint them
- Buy Aluminum stairs, painted
Please advise me....this is very important since I have seen many rusted stairs here. I have even seen aluminum with what I think is white corrosion....maybe even worse since it is so visible with the black paint.
Chris PetersenHeart of the Home - Northville, Michigan, USA
The best option in a corrosive environment is to galvanize and powder coat black second best is to double powdercoat using a zinc rich primer under the finish. Either way should give you many years of trouble free use.
Rick Baird- Cass Lake, Minnesota, USA
2003
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