Rusty propane tank - is it safe?

I am currently in the process of repainting the LP tank mounted on our Class A. First, I removed any paint that was loose or peeling. I used a fine metal brush to remove some, but not all, of the surface rust, as instructed by the rust conversion product used. Corroseal is a water soluble rust converter and primer. Follow the instructions carefully, paying strict attention to the color as it is drying. When you get a good black surface, not grey or brown, it is good to go. Let it cure for a minimum of 24 hours before painting. I chose Rustoleum Protective Enamel, simply because no other dedicated Propane Tank Paint, such as Van Sickle or Krylon, was available in my local area. And of course, with most of my well planned projects, I have waited the requisite curing time, and thunderstorms and heavy rains are predicted. So, I will put the project on hold until the weather conditions cooperate. The converter says I have up to thirty days to paint it. ROFL
Note: If you use a rust converter or primer, be certain that the topcoat paint is compatible with it.