The Hull Truth - Boating and Fishing Forum - View Single Post - Painting aluminum with rattle can paint
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Old 11-09-2019, 05:05 AM
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I would strip the coating that’s on there and consider something like cerakote clear for aluminum or have the tubes anodized.

To answer your specific question, a satisfactory painted finish can be achieved by stripping, cleaning, priming and painting. I have restored old outboards and have made repairs to powder coated aluminum brackets this way.