How to handle this rust
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Mountain Pass
Joined: May 2018
Posts: 197
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How to handle this rust
Spotted my first paint bubble from rust. Scraped off a bit and its not too bad. But its the start of a problem obviously. It rusted through to the stupid matting in the rear wheel well and that holds water enough to creat this problem.
Hit the inside with a grinding wheel, clean it up and apply POR25 before maybe body filling that spot to keep it from exposure? All advice welcome.
More Turbo
Joined: Jun 2009
Posts: 661
Likes: 186
From: Lakeland, MN
Need to wire wheel out past those bubbles. Hit the whole area with some phosphoric acid (cement etch from box store, easy to find) keep it wet for 15-20 minutes with the etch. Wash off the etch and dry the area. Tiger hair on back, spot putty the front. Epoxy primer, wet sand, top coat. Por-15 is not going to lay down flat for you to top coat and not see it. Great for chassis not great for finished surfaces.
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Joined: May 2004
Posts: 6,518
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From: Home Base Nebraska
The only way to fix that is to replace metal with a patch panel. It's rusted from the inside so it will just keep on rusting unless it's replaced. They make really good body glue so you can install a patch panel easily without welding and warping the metal.
Denny
Denny
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Mountain Pass
Joined: May 2018
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Joined: May 2004
Posts: 6,518
Likes: 917
From: Home Base Nebraska
They bend a flange for the repair panel. I've done it on my own a few times with good results. As far as a body shop don't be surprised if they say no. A very good friend of mine runs a shop and he no longer will do rust on any brand of truck unless he can replace the box side.
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dpbrowne
1987 - 1996 F150 & Larger F-Series Trucks
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Apr 28, 2004 05:23 PM
