tailgate rust out

[Coley]

Originally Posted by 72MARIO

Product like Rust Check Krown Fluid Film and Corrosion Free are well knowan in Canada for providing rust proofing products thats work very well at preventing inner pannel deterioration.

BINGO!
I was just going to write up on this product and process.
Each can comes with a small squirter tube (like WD40) so I take that and insert it up around the tailgate latch handle and let fly in there...all directions. If memory serves correct...you might also have a very small access at the left/right inner panel join points...can't quite remember. All you need is enough space for that little tube to fit in.
The rustcheck runs down and spreads out in there...at some point you can see it leaking out a bit.
Its a great product tho'....it has rust stabilizer/etchers in it as well as creep agents, repellents, etc...and it works well. It looks a lot like pinkish/red transmission fluid and it is not unpleasant to work with.
Regardless...after several cans of that put into the truck every fall......I know I'm good to go, no more rust or winter storage/moisture worries.
I do this exact same process with both rocker panels...from below!! It is messy but there are a few small rocker drain holes on the underside of the rocker area that allow for that little squirter tube to fit up in and I fill both those rockers with this spray (all directions)...and then....sleep like a baby in the Canadian winter...lol.
All Good
Coley