Underbody rust prevention?

[GoneFishing.]

I recently got a service on my 2000 wrangler and they said I have "a touch or rust on my under-body, nothing to worry about".

I take it down the coast about once every month and go camping on the beach. I was wondering if anyone can recommend a prevention spray of some sort that will help prevent any further rust?

I do wash her after each each trip but I guess I cant reach some spots Any help would be greatly appreciated!

[Scotty89]

. If you want to fix it before it gets worse, you can have it undercoated. Undercoat is generally a hard rubber material when dried and a lot of off roaders use it. From past experience, spend some money for it and look up reviews for the product. I wouldn't go buy a $1 rattle can and use it, wont last long. I've been told that 3M makes a good one to use. You may even call a few body shops or dealerships and see what they recommend.

[AngryRedBird]

I've found that Krylons rust prevention spray paint has been working for me and our 08 Wrangler.. thos it is suggested that we retreat every 2 years or depending on how bad the rust may be reoccuring. Not that the paint doesn't work.. in fact the last time I sprayed this on the jeep's frame.. it ate the rust away, creating a paintable surface thereafter. I'm looking forward to doing a better job this year and hope to document the whole procedure afterward.