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Old 12-14-2011, 10:24 AM   #1
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Remove Insulation Adhesive

Hi everybody,

We are just getting done gutting our Airstream. We got rid of the pink fiberglass insulation and would like to remove the yellow adhesive, duck tape, etc. and clean those walls.

We tried Goof Off, but that didn't seem to work. Any ideas on products, if possible "Green" ones. Anyone tried Soy-It? A bit pricey but maybe worth if after smelling Goof Off for just a few minutes

Thanks for any advice.

Kiera & Georgie
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Old 12-14-2011, 11:38 AM   #2
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I used a circular scrub brush chucked in a electric drill to rub off the fiberglass shards bound to the glue on all the panels and wiring bundles. Lots of fun in mask and respirator, locate a tyvek full suit if you try this, I'd post a picture of my fuzzy self afterwards but it would be bad for morale and scare the horses... but it did clear the spanish-moss effect off the wiring.

A couple of months later when the shell had been lifted off and standing free I graduated to a 3000psi 3-gallon-per-minute gasoline pressure washer on the shell interior panels to worry the factory spray adhesive. I didn't have much luck removing the swaths of proper adhesive coverage but it erased the over-spray mist that fogged the shell and the surface residue build-up from 40 years to brighten up the interior nicely - or reduced the ugly by at least 50%.

Having the mirror smooth finish back would help keep sun shine heat-load down the same way as having a layer of reflective insulation would - the smooth surface helps keep energy from jumping from the solid to air, plus a physical property of aluminum is it does not radiate Infrared Light well that the glue residue will merrily be beaming off.

I'd love to accomplish a clean interior but will not subject myself to the solvents required (I've been told try Acetone) so will paint the inside shell with insulating paint instead, then a coat of aluminum radiant barrier paint before anything else happens...
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Old 12-14-2011, 03:12 PM   #3
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Cleaning off adhesive and insulation

I did this same thing before and went through several chemicals that didn't work. I ended up using cooking oil and although it didn't make the stuff just fall off, it did work. I smeared it on the walls and let it soak for a couple days then scraped stuff off with a plastic scraper and wood pieces.

Try it on a panel and see what you think. It's cheap too!!!
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Old 12-14-2011, 06:05 PM   #4
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I am with Wabbitteer on the pressure washer. I used it on our 60 Tradewind to remove insulation, glue, and tape residue off the aluminum frame and skins with relative ease. I don't know if the glues are different from the 60s to the 70s. The pressure washer also keeps everything wet so no airborne stuff.
Interested to know how you get it done. Good luck.
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Old 12-15-2011, 12:16 PM   #5
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We gona try out some more products this weekend. I imagine an adhesive/paint stripper of some sort.

I'll let you know how it goes...
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Old 12-20-2011, 06:16 PM   #6
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I tried a paint stripper form the local home depot called Klean-Strip which did not really work, still a lot of scrubbing and no easy peeling.

I guess the reviews on the internet partly confirm the mediocrity product.

Search goes on or wait till spring when the shell is off , to go in with a pressure washer
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Old 12-20-2011, 06:44 PM   #7
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Klean Strip Premium Stripper

Klean-Stripģ

Methylene chloride 60.0 -100.0 %
Methanol 10.0 -30.0 %
Stoddard solvent / Mineral spirits 1.0 -5.0 %

Fail. Thanks for the information!
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Old 12-16-2017, 01:09 PM   #8
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Informative, thanks

Hola Everyone

That glue actually had some magical properties. Didn't realise it is imperative to remove all of it, was thinking we could just add more glue and put the silver reflection stuff on top = wrong!!! Needs to be shiny for insulation, very good to know, want to do this renovation right the first time. I want to remove it anyway, there is tons of mould and dust which contains rat fecal matter. I also tried eucalyptus oil, Goop Off, a bunch of different solvents and nothing, its still there in all its browny yellowish glory, mocking my efforts. We not only have that but that goopy white sealant stuff, we can remove that with a scraper, most of it is a mix of cracked goop and mould, so it has to go. It was used very liberally around everything, including the door and all the windows, it all needs to be replaced, its disintegrating anyways.

The power washer is one of my favourite toys after the chain saw. Its going to be tons of fun cleaning the walls. Thanks for the heads up, was worried about the power washer pressure denting the walls more, but the walls are already dented, ugh....... and so are a couple of ribs (tree from Hurricane Ike falling on it)......one day at a time

Have a great weekend

Joie
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Old 12-22-2017, 04:16 AM   #9
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My 67 had a black tar like substance spattered on the inside walls to hold the insulation in place.
I replaced mine with Reflectex.
If you use this be sure to leave an air gap on both sides of the Reflectex otherwise the insulating properties are nill.
Good luck with your project!
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Old 12-30-2017, 07:42 PM   #10
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Glad I read this thread for what not to use. So far product failures with Goof-off, Klean Strip, eucalyptus oil. Some results with pressure washer.

Cooking oil....works well on the sap I get on my hands. Going to try this on the walls.
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Old 01-01-2018, 10:45 PM   #11
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What is Xylene?

Answer : The stuff that removes insulation adhesive.

I tried the cooking oil. No help.
I tried Krud Kutter with the purple label. No help.
Didn't bother with the others mentioned in this thread due to reported failures.

Had a bottle of Xylene laying around, worked like a champ. Applied with spray bottle. Waited 15 minutes. Scrubbed off with 3M pad and scrub brush.
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Old 01-01-2018, 11:09 PM   #12
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Be careful. Keep area well ventilated. That stuff can be very flammable and itís not good to breathe...
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Old 01-05-2018, 09:28 PM   #13
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How about Zep?

Update from our efforts.

Xylene works but evaporates quickly and takes a lot of effort.
Goof Off Graffiti remover works too (principle ingredient is Acetone) but same troubles as Xylene.

Has anyone ever used Zep Industrial Purple Cleaner & Degreaser for this purpose?
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