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> rear window installation, is everyone still using butyl? or is there something better
brant
post Mar 28 2016, 09:44 AM
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I need to pull my rear window to seal up an air whistle on the highway....
I realize it may be partially due to the targa top seal also

is everyone still using butyl rubber?
is there a better way?

I thought about commercial windshield poly glue, and also thought about how impossible future removal could become...

what experiences have others had?
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maddin
post Mar 30 2016, 03:55 PM
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I did the rear window a couple of months ago on a hot day.
Worked really well,made sure the surface of the window and the metal were absolutely clean (Acetone).
Only thing I noticed is that the Butyl tape I ordered appeared to be half the thickness of the one I took out. It looks too thin and doesn't completely fill out the area where it's sitting in.
Haven't driven the car yet so no idea if it will stick....might reinforce the bottom edge with caulking...
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87m491
post Oct 2 2016, 06:07 PM
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Interesting. Many sites say go with or offer 3/8s-9.5mm butyl tape but it seems the factory used 8mm or closer to 5/16. I just used the widely recommended 3/8s and it seems too thick to me. I could not get it to spread as far as the original had as evidenced by some residual staining on the window sill. I could barely get the glass to sit on the rubber setting blocks as the butyl was so thick it left little room even with the small relief channel built into the bottom of the window frame for the adhesive.

I used a heat gun to make sure it was pliable but I couldn't compress it enough to get the glass to remate up with the lower outside rubber strip. It left more of a gap than I would have liked on the outside, filled of course with butyl. Measuring the original gasket I removed, it was compressed about 2,5 to maybe 3mm. Using a 9.5mm tape that many recommend, even if you could compress it by half, your still way above the original spec. Doing it again I would use 5/16s for sure


QUOTE(maddin @ Mar 30 2016, 01:55 PM) *

I did the rear window a couple of months ago on a hot day.
Worked really well,made sure the surface of the window and the metal were absolutely clean (Acetone).
Only thing I noticed is that the Butyl tape I ordered appeared to be half the thickness of the one I took out. It looks too thin and doesn't completely fill out the area where it's sitting in.
Haven't driven the car yet so no idea if it will stick....might reinforce the bottom edge with caulking...

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Posts in this topic
brant   rear window installation   Mar 28 2016, 09:44 AM
Jeffs9146   I have done many rear windows and I found that wit...   Mar 28 2016, 09:57 AM
pete000   I used butyl from NAPA and it is solid. There are ...   Mar 28 2016, 10:57 AM
jkonzelman   I used butyl from NAPA and it is solid. There are...   Mar 28 2016, 11:26 AM
Jeffs9146   I used butyl from NAPA and it is solid. There ar...   Mar 28 2016, 11:34 AM
Mikey914   [quote name='jkonzelman' post='2321529' date='Mar...   Mar 28 2016, 04:17 PM
worn   I used butyl from NAPA and it is solid. There are...   Mar 29 2016, 07:00 AM
BeatNavy   Are the setting blocks for the windshield the same...   Mar 28 2016, 04:26 PM
Mikey914   Are the setting blocks for the windshield the sam...   Mar 28 2016, 05:41 PM
johnhora   Brant... I've used both butyl and 3M product....   Mar 28 2016, 04:37 PM
Jett   Make sure the butyl tape is kept in a warm locatio...   Mar 28 2016, 05:03 PM
brant   Mark. I screwed up Ordered the butyl from you ...   Mar 28 2016, 05:56 PM
Mikey914   Good news you ordered at a little after our fedex ...   Mar 28 2016, 06:32 PM
brant   Good news you ordered at a little after our fedex...   Mar 28 2016, 07:10 PM
BeatNavy   Good news you ordered at a little after our fede...   Mar 28 2016, 07:16 PM
mepstein   Good reminder. Just ordered. I wanted to get this ...   Mar 28 2016, 07:00 PM
johnhora   Good news you ordered at a little after our fedex...   Mar 28 2016, 07:23 PM
brant   Crap crap crap I only ordered one Crap that was ...   Mar 28 2016, 07:30 PM
Garland   And to finish it off, add the electrical tape all ...   Mar 28 2016, 08:52 PM
boxsterfan   I had no idea there were setting blocks on the rea...   Mar 28 2016, 09:09 PM
BeatNavy   Am I mistaken or did nobody reference Eric's n...   Mar 29 2016, 07:05 AM
Mikey914   You could technically cut one in half in a pinch.   Mar 30 2016, 03:08 PM
maddin   I did the rear window a couple of months ago on a ...   Mar 30 2016, 03:55 PM
87m491   Interesting. Many sites say go with or offer 3/8s...   Oct 2 2016, 06:07 PM
The Cabinetmaker   I used urethane on a front and rear window many ye...   Mar 30 2016, 04:13 PM
RobW   I used 3M 10+ years ago but would go with Mikey fr...   Mar 30 2016, 04:44 PM
76-914   I used butyl on the 76 back in '10 and it is s...   Mar 30 2016, 05:39 PM
76-914   :bump:   Mar 31 2016, 08:15 AM
Mikey914   You can stretch it to make desired thickness, so t...   Oct 2 2016, 11:03 PM
87m491   I hear you, but if too much, it has to go somewher...   Oct 3 2016, 03:36 PM


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