I have the back 1/2 of a donor 89 4runner body off the frame. I want to re-coat the bottom of it before welding it back on to the other 89 4Runner. It is pretty much rust free and I want to keep it that way.
Any suggestions as to what sticks / works best on the factory 1st gen 4Runner undercoating?
I have pressure washed and de-greased it to the best of my ability, but there is some black coating over the factory coating that still remains.
I have removed all the flaky undercoating stuff that was in each rear wheel well and I'm down to bare metal there. I plan on using Eastwood rubberized rust encapsulator undercoating there.
Since the body was maroon and i want black, the original undercoating has the maroon color to it. Any suggestions as to what will cover and protect the current undercoat?

 

No answers I see.
I won't offer an answer or financial advice either, but I know there's been threads in past about undercoating. Not to mention utubes about how they encourage rust. I did put seam sealer along my seams. Of course, haven't even got the transmission back together so there's that.

Maybe this bump will encourage response. Or maybe try dup posting in the .. parent section (above).

 

Thanks. I decided to just go for it. I am keeping rubberized undercoating off the frames.
Basically I just sprayed it over existing factory undercoating.
And I sprayed it on a few places that didn't have it. I figured the worst that could happen is that if there is some grime I didn't get off, it just wouldn't properly cure.

Yep, it looks like I might have posted in the wrong section. Its been a while since I posted, so I probably shouldn't be in the 'build up section'.