All metals corrode, when they lose electrons, due to exposure to oxygen, this is known as oxidation, but only metals that contain iron will rustRust is ferrous or iron oxideAluminum oxidizes, but it is not rust, aluminum oxide is a white chalky substanceWhen copper oxidizes it turns pale greenWhen an APPLE turns brown, it is an example of oxidation.
Spray the metal rings first with a clean primerRust-O-Leum is the bestThen spray the rings with Rust-O-Leum white enamel spray paintThe rings should hold up for years.
