Bubbling Paint

callaway · **Posted:** Mon Jul 18, 2011 11:33 am

Has anyone had experience with the paint on the KJ bubbling ?

See picture below... This is on the back of the KJ above the rear glass...

It doesn't look like there are any rust holes/scratches or anything that would have let water in...
What's up with the bubbling paint here ?

ihatemybike · **Posted:** Mon Jul 18, 2011 12:00 pm

Paint bubbling like that is rust.

bugnout · **Posted:** Mon Jul 18, 2011 1:24 pm

x2, left and right of the third brake light and on the inside of the swing gate on the latch side. I scrapped sanded and primed the three areas. Still need to topcoat.

This issue around the brake light area seems to be very common, must be a manufacturing defect common to pretty much all years 2002-2007.

I think the warranty is for "rust through" only.

tonycrd · **Posted:** Mon Jul 18, 2011 1:52 pm

callaway wrote:

Has anyone had experience with the paint on the KJ bubbling ?

See picture below... This is on the back of the KJ above the rear glass...

It doesn't look like there are any rust holes/scratches or anything that would have let water in...
What's up with the bubbling paint here ?

Mine has that in the exact same spot. JEEP 'repaired' it under warrenty in 2008. It came back...with a vengeance. This is imo not because of the third brake light. It's a paint error in the factory. The rust starts just like that in the middle of the panel.

callaway · **Posted:** Mon Jul 18, 2011 2:55 pm

At least I'm in good company

This is the only spot I've noticed it... can anything be done to prevent this from happening in other spots ?

kjon · **Posted:** Mon Jul 18, 2011 2:56 pm

X5, in the exact same spot. No real rust issues other than right there.

ridenby · **Posted:** Mon Jul 18, 2011 3:00 pm

Same spots,took rear interior out to find it from inside,no luck,three layers of metal. Be carefull fooling with it,mine went all the way through outside. Need to be ready to complete repair once started.

callaway · **Posted:** Mon Jul 18, 2011 3:49 pm

What's the proper way to remove/repair this kinda rust damage ?

tonycrd · **Posted:** Tue Jul 19, 2011 2:18 pm

Angle grinder. Take out the rust completely. Then a very good rustblocker. Then primer. Then filler. Then red paint...Or line-ex. :jester:

The weird part of this all:

I have a dent in my roof where the paint was chipped off, somewhere in the middle/leftside. It's been there since 2004 and other then a little surface rust there's nothing wrong.

But under the paint it rots?

callaway · **Posted:** Tue Jul 19, 2011 2:38 pm

tonycrd wrote:

Angle grinder. Take out the rust completely. Then a very good rustblocker. Then primer. Then filler. Then red paint...Or line-ex. :jester:

The weird part of this all:

I have a dent in my roof where the paint was chipped off, somewhere in the middle/leftside. It's been there since 2004 and other then a little surface rust there's nothing wrong.

But under the paint it rots?

Angle grinder ?? :shock:

That seems a little intense

I used to have the hi-lift mounted on my roof basket. A tree branch snagged it one day while at the Badlands and the hi-lift put a nice little dent/scrape in the roof taking off paint ( approx 8" up from this bubbling rust ). It's been like that for at least 2 years and through snow and rain without peeling :lol:

But yea, doesn't make sense that this rust happens in an area without dents/scratches

tjkj2002 · **Posted:** Tue Jul 19, 2011 7:37 pm

The only way to stop rust is to cut out the whole entire effected area and then some and weld in a new panel.

I bedlined my entire roof,no paint bubbling problem here.

2006 KJ · **Posted:** Tue Jul 19, 2011 10:18 pm

tjkj2002 wrote:

The only way to stop rust is to cut out the whole entire effected area and then some and weld in a new panel.

I bedlined my entire roof,no paint bubbling problem here.

grind off the paint and hit the rusted area and everything around it with a sandblaster. epoxy primer, sealer, paint, clear.

it will stay away for a LONG time. however that method is only good for surface rust. if they are holes tjkj is correct.

tonycrd · **Posted:** Wed Jul 20, 2011 7:29 am

Still weird several KJ's have started to rust in that exact same spot UNDER the paint....

Can we complain somewhere?

tjkj2002 · **Posted:** Wed Jul 20, 2011 7:44 am

tonycrd wrote:

Still weird several KJ's have started to rust in that exact same spot UNDER the paint....

Can we complain somewhere?

Well past any warranty to complain about it,think the exterior panel warranty is only 5 years/100k.

tonycrd · **Posted:** Wed Jul 20, 2011 7:49 am

On mine it was 7 years / unlimited milage...

But I'm way past that so....

callaway · **Posted:** Wed Jul 20, 2011 10:15 am

tjkj2002 wrote:

I bedlined my entire roof,no paint bubbling problem here.

What product did you use ? Any discoloration over time with the direct sunlight the rood always gets ?

tjkj2002 · **Posted:** Wed Jul 20, 2011 8:49 pm

callaway wrote:

tjkj2002 wrote:

I bedlined my entire roof,no paint bubbling problem here.

What product did you use ? Any discoloration over time with the direct sunlight the rood always gets ?

What I used...............

http://www.uschem.com/index.cfm?page=productDetail&id=125&pid=2

After 9 years still looks new and shines,not dull at all.

HoosierJeeper · **Joined:** Sun Feb 15, 2009 8:23 am **Posts:** 1218

Waxing every 4-6 months with good stuff, and washing once a week with good soap goes a long way!

tjkj2002 · **Posted:** Thu Jul 21, 2011 7:05 pm

HoosierJeeper wrote:

Waxing every 4-6 months with good stuff, and washing once a week with good soap goes a long way!

X2

bugnout · **Posted:** Thu Jul 21, 2011 10:29 pm

HoosierJeeper wrote:

Waxing every 4-6 months with good stuff, and washing once a week with good soap goes a long way!

Wouldn't have prevented this. This is rusted metal under the paint. Had to have been there before they painted it at the factory.

I chipped the paint off, it flaked off easily.
Scrapped, sanded the edges until I got to unrusted bare metal at the edges
Taped back about 1/2 inch from that. Scuffed the paint
Used POR15 degreaser and Metal Ready to prep the spot,
let it dry overnight,then wiped off the area with a damp cloth.
Put two coats of POR15 primer over the area - scuffing the finish in between
still need to topcoat.

Bubbling Paint

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