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Paint and Bodywork forum Around here sheetmetal is optional but if you are going to do it, do it right.

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  #16  
Old April 9th, 2017, 18:09
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Ecomike Ecomike is offline
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Re: Rust treatment

Doing some digging for SDS sheets and ingredients. This one has formic acid in it!!!! Very interesting. I may try some.

https://www.amazon.com/dp/B000CPI0R8..._t1_B000BKC25K

One I have not tried yet that has high ratings is made by a well know industrial coating manufacturer, Valspar and it has Tannin (Tannic acid) in it. Both have a latex monomer that polymerizes as the rust is turned into what one calls magnetite in some info I located. The third one has barium sulfate, a common industrial marine coating additive. The rest of the secret sauce was not listed on the SDS sheets

Iron is a Fentons agent catalyst and a great catalyst for reactions and they seem to be using to polymerize the latex while secret sauce reacts and converts the rust to a stable oxide.

One note: Heavy pitted, loose rust needs to cleaned down and removed as well as possible before use. The Plastikote product seems to claim it was made for automotive use.

Quote:
Originally Posted by Ecomike View Post
This is the product, brand I originally used back in the 1980s.

https://www.amazon.com/Permatex-8184.../dp/B000BKC25K

They look and act the same.
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  #17  
Old April 9th, 2017, 18:47
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Kittrell Kittrell is offline
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Re: Rust treatment

Here is a before and after with Loctite.

Here is what I started with on the passenger side.



After the rust neutralizer that EcoMike recommended (Loctite).



Mid paint, I had some exact match Duplicolor.



And done, there was no rust under the sound mat (I checked), so I left it.

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  #18  
Old May 10th, 2017, 14:18
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s14unimog s14unimog is offline
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Re: Rust treatment

My $0.02; I love using this Corroseal stuff.

http://www.corroseal.com/
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  #19  
Old May 10th, 2017, 14:27
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Ecomike Ecomike is offline
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Re: Rust treatment

Thanks, that sounds like the same formula, or almost the same.

Nice photos Kittrell, thanks for sharing.

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Originally Posted by s14unimog View Post
My $0.02; I love using this Corroseal stuff.

http://www.corroseal.com/
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Quote=8Mud: "Go ahead and put up the best fence you can build, I'll bet on some Mexican with a few dollars of nails and a pile of scrap lumber."
34 MPG , '85 2WD Cherokee Pioneer with custom installed, 64 hp, 2.2 L Nissan SD22 Diesel 5 spd Manual; & 4 Renix XJs, '87 Wagoneer 4.0, 4WD, 89-Cherokee, 4WD, '87 Cherokee 2WD, & '89 Cherokee Pioneer 2WD, all 4dr. #2091
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  #20  
Old May 10th, 2017, 16:42
kc1ble kc1ble is offline
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Re: Rust treatment

I have had good luck with POR 15, gonna tackle some spots on my XJ with it soon.
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  #21  
Old May 14th, 2017, 19:06
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Ecomike Ecomike is offline
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Re: Rust treatment

Quote:
Originally Posted by kc1ble View Post
I have had good luck with POR 15, gonna tackle some spots on my XJ with it soon.

I think I used that version once with good results too.
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Quote=8Mud: "Go ahead and put up the best fence you can build, I'll bet on some Mexican with a few dollars of nails and a pile of scrap lumber."
34 MPG , '85 2WD Cherokee Pioneer with custom installed, 64 hp, 2.2 L Nissan SD22 Diesel 5 spd Manual; & 4 Renix XJs, '87 Wagoneer 4.0, 4WD, 89-Cherokee, 4WD, '87 Cherokee 2WD, & '89 Cherokee Pioneer 2WD, all 4dr. #2091
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  #22  
Old July 4th, 2018, 01:39
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Re: Rust treatment

Quote:
Originally Posted by Kittrell View Post
Here is a before and after with Loctite.

Here is what I started with on the passenger side.
@Kittrell or anyone else,

First, thanks for posting and suffering me to resurrect this thread!

Second, what year is your XJ that had the rust under the carpet?

Third, for my '99 XJ, with rather minimal underbody rust (mostly just on the axle tubes and bolt-on pieces, like the factory hitch) how much rust should I assume is under the carpet ... and is it worth pulling out the interior?

Thanks again!!
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  #23  
Old July 4th, 2018, 22:21
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Overland Overland is offline
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Re: Rust treatment

I've noticed they all seem to rust in the same places, like the front corners of the floor pan, or directly over the muffler. My experience lies in trucks from the desert where rain is a biannual affair. Strangely enough, I have one from Wyoming with no rust that I've seen yet.
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  #24  
Old July 4th, 2018, 22:24
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Overland Overland is offline
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Re: Rust treatment

I'll peel the carpet and seal holes to keep my feet dry when taking water crossings, but I imagine the truck will outlive me whether I correct the rust or not. The post above is great, but most times people rip the entire interior out, cut large chunks out of the floor, give up, and eventually sell it for a fraction of what they paid, which I would often still consider to be too much.

Seen it enough times and declined to pay over $250 more than once.
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