Stopping/slowing/treating Chassis Rust?

[yieldsign2]

What have you done?

My chassis has a fair amount of surface rust, not yet becoming structural, but in my last rover it eventually got to the point where the back of teh chassis cracked when put on a lift.

On teh back end that I installed a new crossmember last spring I had used this technique:

1. Clean
2. Knock off any flakes that i could
3. Wirewheel on power drill
4. Used some rust reformer type spray that supposedly turns rust into black primer. I used this on any points that still looked to be rusty after wirebrushing as clean as I could.
5. Coated with heavy duty truck bedcoating

It looked great then, I ddi this to teh bumpers as well. But now, after only a year (or less) and one winter of northeast road salt and sand, it is already flaking off many places and more rust is showing through.

Anyone have any cheap ideas of treatment? i'm removing the axles and treating as much of teh chassis and underbody that I can get to this summer while it's off the road (it's my winter truck).

I can't spend hundreds on this, just looking for any rust reformer type products that people have had luck with, or any better techniques or undercoatings or ways of grinding off the rust?

Is my best bet just to keep doing what I did before and just treat the new areas that pop up as they come?

Thanks!

[rmuller]

http://www.por-15.com/

[yieldsign2]

Originally Posted by yieldsign2

Anyone have any cheap ideas of treatment?

I can't spend hundreds on this,

por15 would cost probably 400 dollars to do my whole chassis in it i would think.. its 100+ just for a gallon, which most likely would only cover the rear end.

[Badger1]

What about waxoyl? Claims to "kill" existing rust. About two hundred for enough for the whole underbody.

[OkieRover]

That truly sucks.
Have you considered a galvanized chasis. I know you want to keep it inexpensive but it seems to me that all these remedies cost money as well and are not permanent.
I hate to add a frame off restore to your list of things to do but I think I'd consider it if I lived where you live.

[yieldsign2]

I'll probably just do what I did last spring. I have so many cars and so much time (college student) that i might as well just patch it. Honestly I Just want to slow it down, get a few more years out of the truck.. It's not compromising structure at all yet it's just ugly. I don't know how it does it but I got this truck with a clean middle chassis, and my old one was clean before bringing it to the northeast as well, and literally in about a winter it rusts away.

Even the rear crossmember that i installed last year from DAP, I painted it and everything.... rusting through the paint already!

[sven]

1 gallon of POR will go a long way. I did my entire rear crossmember and loadspace area (top and bottom) with 1 quart. Also had some left over for the rear chassis.

So I did this last winter, and now Im starting to see surface rust form on top of the POR15.....Thinking Waxoyl might be the next step

[OkieRover]

This conversation just convinced me I'm never moving to the North.

[RageRover]

Originally Posted by OkieRover

This conversation just convinced me I'm never moving to the North.

Yeah, you're tellin' me, my hood had seen better days, but nowhere else is the truck rusting, sorta, just a few bubbles in the area of the tailgate, nothing big, but surprisingly my frame is not corroding, and looks to be coated in some sorta liner, but it is not thick.

[yieldsign2]

Honestly this being in teh dark and the flash made this look WAY worse than it really is/looks.. but will this scare you some more okie?

Oh, please note, second to last pic, up in teh wheel well is where I treated and undercoated just over a year ago!

[Badger1]

Hey that actually looks as bad as my wifes 2000 D2!

[yieldsign2]

Originally Posted by Badger1

Hey that actually looks as bad as my wifes 2000 D2!

now im pretty sure that hurts worse than it being on my 17 year old truck.....