I have an old pick-up cab. It needs the cab to frame supports.
I have a floor from a newer year cab that has strong mounts.
my problem is some rust has gotten into it.

I can sand blast and weld up what is exposed. However I was concerned about what may be hiding in the seams. Rocker panels and such. Is there a product that can be poured into them? I would like some kind of rust inhibitor that would stop the oxygenation process and render whats left strong and long lasting

Am I dreaming, or does something exist for this?

Thanx for any help.

POR 15 in a cheap garden pesticide sprayer. Make sure to cover up where it will drop out. It drys like concrete.
Doug

This might work for you.

http://www.eastwood.com/internal-frame-coating-w-spray-nozzle-qt.html