re: Best way to protect an RV frame in Grand Isle?

Consider using "Corrosion X", it is a product used to prevent corrosion in aircraft.

LINK

A gallon would probably do the job, and is $89.00, it is designed for your purpose, and since it is used inside aircraft the level of flammable chemicals in it are at a minimum which would also be a good thing for a structure you are living in.


"Use CorrosionX wherever you want corrosion control without paint or wax coatings. A light spray of CorrosionX on power heads, generators sets and engines a couple of times a year will keeping them looking like new – even in saltwater and coastal environments.

CorrosionX's unique formulation offers a multitude of advantages over conventional spray lubricants. Because it sticks to metal like a magnet, it cannot be easily displaced by pressure, friction or moisture. It lubricates under extreme loads and high temperatures."