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Old 08-29-2013, 09:43 AM   #29
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Any success on the repair project? I am in a similar situation with major delam on the back quarter of my Winnebago. I've started removing the inner wall, wallpaper, luan plywood, foam and now I'm trying to remove the layer of luan that is glued to the fiberglass skin. In most of it, water has rotten the wood and it all comes off easily. Unfortunately, there is a lot that'll need to be removed that is still firmly attached to the fiberglass. I'm afraid it I don't get the fiberglass completely free of everything, when I get to the point of replacing, gluing and pressuring the wall back together to cure, the stuff that isn't removed will show up thru the fiberglass. With this much work, I'd hate if I fixed the delam bubbling, but ended up with random wood strip impressions showing thru on the outside. Wondering if anyone knows of an adhesive remover that won't affect the fiberglass that I can use to remove the stubborn luan.
The glue is nothing too fancy. Very similar or the same as that used to fasten Formica to countertops? I think a scraper and a heat gun would be my first line of defense, followed by acetone applied carefully in a manner that doesn't let it run down into areas you don't want it for a final cleaning. Breathing that vapor probably not real good for you either, so maybe a big fan would be part of a good plan as well?

Best of luck! -Al
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Old 08-29-2013, 06:06 PM   #30
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glue

Lepages PL Premium construction adhesive is very good, in my experience for bonding the luan- styrofoam-fibreglass "sandwich" together. We used it to restore two bad walls on an older travel trailer.
For repairs of the main wall sections we did it in stages, working inside..glue styrofoam to fibreglass wall then after that cured,glue luan to styrofoam. Spread the glue with a flooring spreader ( sawtooth type)
A time consuming, but extremely important part was creating the "jig" to put enough enough pressure on the walls inside and outside to position/hold the "sandwich" while the glue set . We ended up making a wood framework with homemade screwjacks out side the trailer, and used many drywall support jacks and temporary plywood crosswise inside.
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Old 08-29-2013, 06:14 PM   #31
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scraper

We removed the material stuck to the fibreglass with an electric vibrating scraper, it cleaned it right off for us.
Fein ( Germany ) makes an expensive one, now they are inexpensive, Chinese, at Harbor Freight. Keep the scraper ground sharp, hold it at a shallow angle and don't press too hard.
I discovered that tool by watching the guys at a trailer repair shop.
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Old 08-30-2013, 07:18 AM   #32
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delamination

he above two posts would've made lots more sense if I had thought about it a bit more and recalled what we actually did. Obviously didn't glue the styrofoam directly to the outside fibreglass..the construction from out side in is fibreglass, luan, foam, then luan with pre-applied wallpaper. The vibrating scraper worked well for removing the old wood stuck to the fibreglass. Sorry for my confusion it's been a long time.
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Old 08-30-2013, 09:03 AM   #33
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I know I'm a "Johnny Come Lately" on this but I was reading up on de-lam because my neighbor found some on his recently acquired MH.

The picture you show on the whole window area shows de-lam above the window. I think you may have mis-diagnosed the problem, it had to start above the window.
No above the window is still laminated up to the roof, My window of good weather slammed shut, so I had to stop and install the window, and quickly seal all possible leaks on roof and seams. Got that done.

The wall came out ok in my opinion and is solid as a rock. Now just have to do it in the other three places I found. They are minor in comparison but i might as well finish what I started.

Time to Take it to the lake for the weekend, I'll get a pic when it's in the same position in the drive so you can see the difference.
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Old 08-30-2013, 01:00 PM   #34
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No above the window is still laminated up to the roof, My window of good weather slammed shut, so I had to stop and install the window, and quickly seal all possible leaks on roof and seams. Got that done.

The wall came out ok in my opinion and is solid as a rock. Now just have to do it in the other three places I found. They are minor in comparison but i might as well finish what I started.

Time to Take it to the lake for the weekend, I'll get a pic when it's in the same position in the drive so you can see the difference.
I'm confused, what are the big blisters above the window in the picture you posted in #14 post of this thread. I don't doubt your word, but what in world are they?
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Old 08-30-2013, 01:15 PM   #35
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Old 08-30-2013, 02:21 PM   #36
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Looks like bead board panels ???
Lot of work, to be commended, wonder what Aluminum .060 4 x 8 sheets would cost.
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Old 09-02-2013, 11:11 PM   #37
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I thought the same thing till I got close, it radiates from the window, still does, maybe the next round of epoxy will make it up there.

We had fun camping at the Lake, every one we met were very friendly.
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Old 09-02-2013, 11:24 PM   #38
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I'm confused, what are the big blisters above the window in the picture you posted in #14 post of this thread. I don't doubt your word, but what in world are they?
Sure looks like the same type of problem above the window as below to me too.
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Old 09-03-2013, 10:11 AM   #39
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Thats correct I really think the window leaked within minutes of leaving the factory. It filled the wall 19' even up from the window frame. I only had a short time to leave it open, so I haven't fixed the top yet. The house ran good, so I will keep fixing.
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Old 09-04-2013, 12:30 AM   #40
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Looks much better.
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