Edge rust

Submitted to Product Chat

Hello. My ski chair has a somewhat protected outdoor placement but still I do have the problem of the metal skis edge rusting.
Its hard to photograph in the sheltered shaded position.
I have cleaned a lot of the rust away with a magic eraser today.

Is there a recommended exterior clear coating that I might place by spray or brush to seal this edge that might be friendly to both the metal fiberglass edging?

The Rustoleum black enamel painted pressure treated wood looks phenomenal Btw.

Thank you very much for your time and trouble to review.