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Originally Posted by DeanFL
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I painted all our downspouts when repainting our house 2+ years ago. Just cleaned the white original finish and used the highly rated grade Behr Ultra satin exterior latex. Same that I used on our stucco sides. Did the whole house, very pleased and the downspouts blend right in. Did not paint the gutters.
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Most Latex paints contain ammonia and and this is a definite NO NO for aluminum, as there can be a chemical reaction that causes bubbles. I hope this holds up for you.
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Pennsylvania, for 60+ years, most recently, Allentown, now TV.