79 Sceptre 23-Painting the Aluminum winshield frame

[Brooks Reid]

My 79 23' Seacraft Sceptre windshield has some pitting and corrosion and I was thinking about sanding and painting it white to give it a powder coat look without breaking the bank.
Anyone ever tried this?

I'm just going to mask it off and use some ivory white satin spray paint. I'm just wondering what kind of paint and how long I could expect it to last in a boat.

Thanks

Brooks