While I give no guarantees, try Fluid Film. I cannot attest to how well it will work in a salty riding environment as they rarely salt the roads here in San Diego, but the stuff has amazed me with what it can do.
Fluid FilmŪ | Corrosion Preventative, Lubricant and Rust Inhibitor
Edit: I suppose since this is a thread about chain lube, I should add that I really like Maxima Chain Wax too. It dries white so you can see exactly where it went (makes it easy to check for missed spots), never flings off, does not attract dust or dirt what so ever, easy to apply, made down the street from my house.