where I live, yes. lots of salt used every year. I use fluid film, I have a professional spray kit here at home just to do our vehicles. 4 of them then the families, do drips, and is extremely durable. it does not come off once applied. 1st application is heavy, years after are just for high water areas, but it makes it so the water beads up on the metal and drips off and never actually contacts the metal. same with salt. its not nasty motor oil either. where it drips and gets everything nasty.