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Just bought a 2007 JKU with the door hinges paint all bubbled up. What is the best way to remove all the paint and corrosion? I am hoping to use a bed liner type product to coat them, will this keep the bubbling from coming back?
 

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It's not rust causing the paint to bubble. It is galvanic corrosion caused by the use of aluminum hinges against steel doors without an insulator between the two different metals. They all do it.

Search this section for "galvanic" and you will learn more than you ever wanted to and a lot you didn't.

The easiest way to strip them is to remove them and apply aircraft stripper.

I believe there is an insulating pad that you can put between the door and hinge when replacing that is supposed to fix the problem but it is questionable if it works.
 

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Granted the simplest method would be to replace the hinges. But common knowledge shows that most jeepes tend to be DIYers. In this case a good paint stripper or sanding as to removed the hinge paint and prep and repaint color matching or the black bedliner you suggested. just depends how versatile you're willing to explore the repainting or recoating process.
 

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Just bought a 2007 JKU with the door hinges paint all bubbled up. What is the best way to remove all the paint and corrosion? I am hoping to use a bed liner type product to coat them, will this keep the bubbling from coming back?
I agree with spotco2 about galvanic corrosion being the issue. The best bet to stopping it permanently would be to find someone who can sandblast or more preferably glass bead the hinges till all corrosion is removed and the part is bare aluminum. Glass bead will leave a smoother less aggressive finish. You will then need to use a quality acid etch primer, primer sealer, and then paint all surfaces of the hinge. Bedline over the paint if you still want but don't use bedliner as a paint. If you really wanted to go crazy (which you don't I am sure) once the hinges are bare aluminum you could have the them Chromated which is a chemical finish that protects the part from oxidation and corrosion and replaces the need for an etch primer. It is an excellent surface to adhere a primer/sealer and paint to. Chromate is a fairly inexpensive process usually done by any company whom anodizes aluminum. I can have a set of hinges done locally for $15 - $20 bucks. Anytime we have to paint aluminum (I run a company that builds pharma machinery) we have it Chromated first and we have zero peeling issues after painting.

All that being said... It might just be cheaper to purchase a set of hinges.
 

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if every jeep engineer was forced to personally fix the shit they design, maybe they would stop pumping out shit. just a thought

whichever jeep engineer thought putting aluminum hinges on a steel door would be fine, he should be fired it's such an elementary mistake, it's disgraceful
 

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...I believe there is an insulating pad that you can put between the door and hinge when replacing that is supposed to fix the problem but it is questionable if it works.
Jeep has released revised hinges that include pads underneath that prevent direct contact between the dissimilar metals. As far as I know these pads are part of the new hinges and are not available separately, but perhaps there's some aftermarket source for similar pads.

Also, in 2013 Jeep issued a TSB about the corrosion problem related to the hinges. The TSB describes the recommended procedure for preventing future corrosion, and basically involves putting an epoxy sealer between the hinge and the door. The TSB # is 23-021-13.
 
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