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Old 08-20-2010, 05:38 AM   #1
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Underbody rust

My new to me jeep is a 97 and it has a lot of rust on the underbody. Everything seems solid, other than the front floor pans. What's the best way to clean up and protect the underbody? Can I just coat the rust with something or should I clean it up first? What could I coat it with? Thanks in advance for the help
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Old 08-20-2010, 06:46 AM   #2

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will depend on how bad it is.. If its just minor surface rust.. sand it down to metal.. then coat with a sealing primer and spray some paint on it. If its rusted with holes... then you can either weld in a metal patch after cutting the rust area out or they sell new floor board sections you can weld in. A product like extend or rust fix.. (don't recall the exact names) can be sprayed on the rust and it turns it into a surface you can paint. You could sand it down an then use por15 on it as well. Just depends, how bad it is and how much work you want to do.

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Old 08-20-2010, 09:37 AM   #3
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The only holes I see, and I crawled all the way under it were the floor pans, I have new ones on order. The rest looks like it is all surface rust, I'm guessing the best way to deal with it would be the harder way and sand it down first. If I can save some time with out sanding and still get it taken care of, that would be best for me
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Old 08-20-2010, 09:47 AM   #4
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When and if you get it all fixed up, consider doing an underbody oil spray. I get one about once a year, and it's not that expensive
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