We recently tested five spray paints for metal on both rounded and flat metal objects ... This option from Rust-Oleum is an oil-based enamel spray paint that comes in a wide range of colors ...
Description: INDUSTRIAL ENAMEL is a medium oil/alkyd all-purpose enamel with a durable color pigment system. Designed for interior and exterior use. Dries fast and allows equipment to be placed back ...
Make sure to wear protective gloves and eyewear ... Use a self-etching primer like Rust-Oleum Flat Aluminum Primer. This product is specially formulated to adhere to bare aluminum.