 rear window installation, is everyone still using butyl? or is there something better |
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| BeatNavy |
 Mar 29 2016, 07:05 AM
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#21
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Certified Professional Scapegoat  Group: Members Posts: 2,924 Joined: 26-February 14 From: Easton, MD Member No.: 17,042 Region Association: MidAtlantic Region 
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Am I mistaken or did nobody reference Eric's nice write-up in classics?
http://www.914world.com/bbs2/index.php?showtopic=15821 That's the process I followed two years ago, and it seemed to work for me. |
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| Mikey914 |
Mar 30 2016, 03:08 PM
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#22
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The rubber man Group: Members Posts: 12,678 Joined: 27-December 04 From: Hillsboro, OR Member No.: 3,348 Region Association: None
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You could technically cut one in half in a pinch.
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| maddin |
Mar 30 2016, 03:55 PM
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#23
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Member Group: Members Posts: 168 Joined: 22-December 13 From: Australia Member No.: 16,789 Region Association: Australia and New Zealand |
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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| TheCabinetmaker |
Mar 30 2016, 04:13 PM
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#24
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I drive my car everyday Group: Members Posts: 8,304 Joined: 8-May 03 From: Tulsa, Ok. Member No.: 666 |
I used urethane on a front and rear window many years ago. Never again. Both windows cracked in a year.
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| EdwardBlume |
Mar 30 2016, 04:44 PM
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#25
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914 Wizard Group: Members Posts: 12,338 Joined: 2-January 03 From: SLO Member No.: 81 Region Association: Central California
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I used 3M 10+ years ago but would go with Mikey from here on....
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| 76-914 |
Mar 30 2016, 05:39 PM
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#26
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Repeat Offender & Resident Subaru Antagonist Group: Members Posts: 13,508 Joined: 23-January 09 From: Temecula, CA Member No.: 9,964 Region Association: Southern California
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I used butyl on the 76 back in '10 and it is still solid. Agree with the previous comment re: clean surfaces.
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| 76-914 |
Mar 31 2016, 08:15 AM
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#27
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Repeat Offender & Resident Subaru Antagonist Group: Members Posts: 13,508 Joined: 23-January 09 From: Temecula, CA Member No.: 9,964 Region Association: Southern California
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| 87m491 |
Oct 2 2016, 06:07 PM
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#28
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Member Group: Members Posts: 275 Joined: 29-July 12 From: Portland, the original! Member No.: 14,731 Region Association: North East States
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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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| Mikey914 |
Oct 2 2016, 11:03 PM
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#29
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The rubber man Group: Members Posts: 12,678 Joined: 27-December 04 From: Hillsboro, OR Member No.: 3,348 Region Association: None
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You can stretch it to make desired thickness, so the difference between 8.5 and 9mm is easily accommodated.
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| 87m491 |
Oct 3 2016, 03:36 PM
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#30
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Member Group: Members Posts: 275 Joined: 29-July 12 From: Portland, the original! Member No.: 14,731 Region Association: North East States
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I hear you, but if too much, it has to go somewhere and when pushing on it through glass, not the easiest thing. Would have liked at shot at running voltage through the original to get it nice and pliable!
(IMG:http://www.914world.com/bbs2/uploads_offsite/i723.photobucket.com-14731-1475530594.1.jpg) QUOTE(Mikey914 @ Oct 2 2016, 09:03 PM) You can stretch it to make desired thickness, so the difference between 8.5 and 9mm is easily accommodated. |
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