TheSamba.com :: View topic - Butyl adhesive for the door vapor barrier?

Mon Sep 03, 2012 6:17 pm

Ok professional body guys...where do you buy this stuff that Vdub uses to hold door plastic, and carpet for 20yrs, with out hardening ?
As usual I asked all the locals........and guess what they say "Just tear that plastic out and throw it away"..."Doesn't do shit !...what'dya need it for???"
"Butyllll what ?"
Yeah I tried a little search ...YaDah YaDah.Whatever :roll:
I'm so tired of Rednecks...maybe there's a virus we can put in the Butt=wiper
and kill them all...If you know what I mean
..thanks for any tips on butyl adhesive vendors

Mon Sep 03, 2012 6:35 pm

I got my butyl at a glass shop. Its what they use to put patio sliders, etc together and comes in several sizes.

Mon Sep 03, 2012 6:52 pm

I get it from local parts store

Mon Sep 03, 2012 7:03 pm

People often call it dumdum(not a joke) a good auto parts shop should be able to get you a 3m equivalent.

Mon Sep 03, 2012 7:26 pm

Thankyou thankyou.
I know the glass guys/grls...they drink wine, and will probably be helpful.
as for the FLAps....Hmmm :? ...its still "Butyl??, for what?"
"Is that like Sillycone?"
I dunno ...maybe its my accent...or the fact that I make sentences with subjects and ? marks.
Thankyou :D I'll see the glass chick in the AM.

Tue Sep 04, 2012 3:53 am

Last tube I got was from Lowes or Home Depot. Think it was with the other caulking. But I tend to grab whatever is handy anymore (trim adhesive, silicone caulk). And on the subject I cant believe that people pay someplace like Mid America $20 for 4 pieces of plastic sheet that is the same thing as a heavy garbage can liner...... :roll:

Tue Sep 04, 2012 4:29 pm

Not sure if you are replacing something or are r and i for repair. If you are removing the sheet to make a repair use either a razor blade or a sharpened metal filler spreader and cut the dumb dumb. When you're done stick the dumb dumb sides back together.

You can also get dumb dumb a.k.a. Thycol or whatever else you want to call it at part supply places, comes in a box rolled with a paper separator.

Plastic sheet is a vapor barrier and is meant to contain moisture from coming in from areas like the belt molding at the window line, etc.

Tue Sep 04, 2012 4:40 pm

I've used non-hardening gasket sealer, stuck fine and can still unstick/stick it years later.

Tue Sep 04, 2012 4:40 pm

I use this stuff for lots of projects where butyl rubber is required.

I don't use it for vapor barriers, though. I use either Permatex or 3M spray adhesive to adhere plastic barriers to the doors.

Thu Jul 21, 2016 4:55 pm

I just bought a tube of the DAP butyl flex today for less than $6 at Bi-Mart here in OR. Ace didn't have it here.

http://www.dap.com/dap-products-ph/butyl-flex-gutter-flashing-sealant/

Thu Jul 21, 2016 10:14 pm

I use 3M Strip Calk for this all the time. It works perfect for this application.

https://www.amazon.com/3M-08578-Black-Strip-Calk/d...trip+caulk

Fri Jul 22, 2016 5:01 pm

I just used a roll of carpet protector that I bought at Home Depot. It comes in a roll and one side is sticky. Movers use it to put over the carpet so they don't have to take their shoes off. You can see it on this thread http://www.thesamba.com/vw/forum/viewtopic.php?t=2...p;start=20[img][/img]

Works really well; then just trim with a razor blade.

WL

Fri Jul 22, 2016 5:49 pm

pbrown wrote: I use 3M Strip Calk for this all the time. It works perfect for this application.

https://www.amazon.com/3M-08578-Black-Strip-Calk/d...trip+caulk

word!

Fri Jul 22, 2016 6:03 pm

Quote: I just used a roll of carpet protector
Sweet re purposing idea. I love it when someone discovers a alternate use for something that is perfect for a totally unrelated application.

Bo

Sat Jul 23, 2016 8:55 am

Butyl lets loose and spray glue will not last. I use Construction adhesive like what they use for putting paneling on walls. It comes in a caulking tube and will bond to the paint of the door and to plastic sheeting. When you need access to the door again, just cut it with a razor blade and re apply.
I've used adhesion promoter on the plastic when making new door skins . Don't let anyone tell you they are not needed, They are a noise dust and vapor barrier.

Stacy

Sat Jul 23, 2016 9:14 am

I have always used 3-M spray adhesive.
Allow it to set up, apply the viscuine, it'll never come off.

Fast, easy, permanent.

Sun Jul 24, 2016 7:42 am

When the surface is prepped right, butyl works great.

Strip caulk does not have the holding power and will not work what so ever.

Spray adhesive works quick and easy. The trick is to let it dry a bit. This is my go to procedure for plastic vapor barrier installation.

Sun Jul 24, 2016 10:18 am

I've have always just used a cheap tube of clear window caulking. Stays flexible and holds fine. You do have to reapply when you remove the plastic at a later date. If your plastic moisture barrier is all ripped up from PO hacks you can replace with simple clear plastic painters tarp.

To those hacks that say "just pull that plastic off-you don't need it" bull sh*t! That moisture barrier is very important. Rain will always get past the window scrappers and into the door, without the barrier the door panels get wet, moldy, and begin to fall apart. They also help with drafts, noise and insects.

I just recently pulled the door panels off my Geo Tracker, I had the panels off a couple years ago to install some sound deadener, and the clear window caulk was still holding fine and the inner door was full of dead stink bugs. Damn things are everywhere around here in the fall; the barrier kept them out of the interior of the car.

Sun Jul 24, 2016 11:38 am

clear window caulking most likely has silicone in it, so you can never ever take it to a painter

if you do, he will hunt you down and kill you

Mon Nov 23, 2020 11:05 am

westylife wrote: I just used a roll of carpet protector that I bought at Home Depot. It comes in a roll and one side is sticky. Movers use it to put over the carpet so they don't have to take their shoes off. You can see it on this thread http://www.thesamba.com/vw/forum/viewtopic.php?t=2...p;start=20[img][/img]

Works really well; then just trim with a razor blade.

WL
Any report on how's it holding up? Anyone else use this?

I located it @ the Big Box store website - there were comments on it being basically a thicker Saran Wrap.
I was thinking of using something thicker, but perhaps that is unnecessary.