Preventing the spread of rust, what did you do? -
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post #1 of 3 Old 08-27-2017, 12:05 PM Thread Starter
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1993 ZJ 
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Location: Somewhere
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Preventing the spread of rust, what did you do?

Hello All,

It's been a while since I've had time to work on my 1993 5.2 ZJ, but recently I've gotten around to it. I've observed some rust spots on the Jeep (some newer, some old). As far as I know this used to be a Texas Jeep prior to arriving in Colorado. The paint job is nothing to write home about. I do not know if I will get it re-painted in the future or not. I've attached images to this post of the rust that I've spotted, the underneath the Jeep and the engine compartment appear to be rust free. Everything is bone stock. My question, how have you delt with the rust? At this point I'm more interested in preventing the spread than repainting. Does anyone have any experience or suggestions they can share?

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"Those who say it cannot be done should not interrupt the one doing it." -Chinese Proverb
93' Grand Cherokee 5.2 Ltd. - Mine
93' Grand Wagoneer 5.2- Dad's
93' Grand Cherokee 4.0 Ltd. (Deceased)
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post #2 of 3 Old 08-27-2017, 01:06 PM
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1994 ZJ 
Join Date: Sep 2007
Location: Florida
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The best is paint over bare metal, using automotive paints and primers.

On mine, I degreased, lightly sanded and painted, using Rust-Oleum Professional High Performance Protective Enamel in both the quart cans and the aerosol cans.

On the bottom of my ZJ, I rolled over the gray base coat and it still looks new years later.

There are various spots where I've used this to touch up on hidden areas.

Those exposed areas should be lightly sanded, primed w/ automotive aerosol paint, then painted w/ automotive aerosol paint.

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post #3 of 3 Old 08-27-2017, 06:39 PM
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1994 ZJ 
Join Date: Sep 2014
Location: Sunrise
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i would sand and use a "rust converter" or phosphoric acid first before painting. If any small amount of rust remains after sanding, it will pop up again.
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