This is basically the stuff if someone wants to try it out. "Top coat should be reapplied when water no longer rolls off the surface" - I wonder how long that will be in Texas sun daily driver application
http://www.homedepot.com/p/Rust-Oleu...4232/204216476
Also, "Sprays clear and dries to a flat, frosted haze, may cause items to change color or sheen and is more noticeable on dark colored objects, test in an inconspicuous area first"