How do you keep galvanized corrugated steel panels from rusting?

Most sites offer ideas on how to make metal rust. For rust protection I found this product so I guess it comes down to a primer or paint on protection option. I am sure you will find more options, as well. For example, Rustoleum offers clear coat options in cans and sprays. Here's the original company I found: http://www.cosmolinedirect.com/cosmoline-rust-veto-342-industrial-grade/

Good luck!

i believe Home Depot sells something you can brush on or perhaps a way. You might consider spraying the panels with WD 40 but depending on the size of your project it could get pricey and I think you would have to re- apply periodically

well a little more expensive than I thought, Thanks though