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Old 03-29-2012, 02:22 AM
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Rust and Bedliner

I'd like to work on some rust areas under my jeep. Can I just wire brush and wash some problem areas and finish up with some Rustoleam bed liner over the top or do I need to do some type of chemical etching to get a good surface to spray over? Thanks
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Old 03-29-2012, 02:25 AM   #2
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Just remove all of the rust and lightly sand the whole area where you wanna paint.

“Ain't nothing better than ridin' a fine horse into a new country.”

-Augustus McCrae
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Old 03-29-2012, 07:33 AM   #3
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The important thing I would say is to arrest the rust so after wire brushing and using a sanding block (I prefer my 5" orbital sander where it will reach) spray a rust converter first and then top it with the bedliner spray. Or you can go the more expensive one-step route and use POR-15 (if you don't mind the texture you don't even have to sand/wire brush first unless the rust is flaking of course plus you can roll it on and it dries smooth). I know they recommend top-coating the POR-15 since it doesn't have any UV inhibitors but I would use it anyway and just top it with the bedliner spray in the wheel areas. This is a project my lazy butt has been wanting to do for some time.

BTW, I think that bedliner spray will stick to just about ANYTHING! Definitely a Jeeper's best friend.
'12 Black Sport JK
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Old 03-29-2012, 12:02 PM   #4

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I took an air chisel to the flakey parts and wire brush to the rest. I then coated everything in POR 15. It was a fair amount of work but I really like the way it turned out. At a minimum you should hit all the bad areas with a rust convertor.
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