4x4 Radiator Metal Hose?

[Luis_gz06]

Just bought a original 4x4 radiator metal hose from a member, and have a question. What's a good anticorrosive or paint spray to use on these hoses? It had minor surface rust, and I cleaned it inside out with sandpaper on the outside, and rust remover gel on the inside. It cleaned out pretty well. All I need now, is to spray a protective anticorrosive to prevent it from re-rusting in the future. Where can I get it from also? Thanks!