windshield installation question, Windo Weld urethane |
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windshield installation question, Windo Weld urethane |
dangrouche |
Apr 24 2014, 12:10 AM
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#1
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dangrouche Group: Members Posts: 550 Joined: 1-May 04 From: San Francisco Bay Area Member No.: 2,012 Region Association: None |
I have read many threads and not seen anywhere Window Weld has been discussed to be used in addition to the butyl bead. I have the 3/8" butyl bead AND the 3M Window weld urethane caulk. All the threads I have read in this forum have not discussed the usage of the 3M Windo Weld. I was at the auto paint store and the counter guys seemed to know what they were talking about. What have you guys used? Butyl bead only or Butyl bead AND the Windo Weld. The tube cost $22, so thats not the issue. Will simply placing the glass on the butyl bead do the job??
I'd like to see what you guys have done. I am in the first stages of installation. I have dry fitted, set up the spacers and tape witness marks. Attached thumbnail(s) |
etcmss |
Apr 24 2014, 03:21 AM
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#2
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etcmss Group: Members Posts: 183 Joined: 20-April 06 From: Lancaster, Ky Member No.: 5,899 Region Association: Upper MidWest |
3M Window bead
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TheCabinetmaker |
Apr 24 2014, 04:57 AM
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#3
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I drive my car everyday Group: Members Posts: 8,299 Joined: 8-May 03 From: Tulsa, Ok. Member No.: 666 |
Butyl and urethane is redundant. Urethane. Period!
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bulitt |
Apr 24 2014, 05:34 AM
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#4
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Achtzylinder Group: Members Posts: 4,188 Joined: 2-October 11 Member No.: 13,632 Region Association: South East States |
IMHO opinion you can use either. The butyl has a consistent thickness and straighter edge. If you use the urethane you will need to put a consistent thickness all the way around and probably need some spacers as to not squish it flat. The Urethane needs 24 hrs to cure.
When using the butyl you position and pull the backing as you go which for most of the time works. But it's really sticky and if you slip and put it on askew it wont come off easy. Don't pull more backing off than you really need to work with. The Butyl will have a small seam which if I recall goes on the bottom. Think it would be best to install the windshield, then sit it in the sun and press it all around again. Chrome trim will hide most of the irregularities. The rubber trim isn't as wide so you will need to paint the edges of the windshield. Many threads on the subject. Here is one- http://www.914world.com/bbs2/index.php?sho...74816&st=20 Have fun. |
rick 918-S |
Apr 24 2014, 07:58 AM
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#5
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Hey nice rack! -Celette Group: Members Posts: 20,354 Joined: 30-December 02 From: Now in Superior WI Member No.: 43 Region Association: Northstar Region |
Urethane was designed as a structural adhesive for unitized construction where the glass is actually part of the vehicles integrity.
914's do not reply on the windshield frame as part of the structure. Infact if you use urethane and get a crack in your windshield good luck removing your trim without ruining it. Do it old school. Windshield primer, Butyl tape new plastic clips and trim. |
dangrouche |
Apr 24 2014, 08:31 AM
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#6
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dangrouche Group: Members Posts: 550 Joined: 1-May 04 From: San Francisco Bay Area Member No.: 2,012 Region Association: None |
thanks Guys. looks like I am a few hours away from a completed install. thread with to follow in the next week
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SLITS |
Apr 24 2014, 08:40 AM
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#7
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"This Utah shit is HARSH!" Group: Benefactors Posts: 13,602 Joined: 22-February 04 From: SoCal Mountains ... Member No.: 1,696 Region Association: None |
I have used Butyl Tape on all my installations except for a couple of cars where I used the rubber trim.
The Butyl tape allows me to lay down the strip without excess that will bind the bright trim also. This allows me to remove the trim without screwing it up. And it's less messy than a tube of shit that is usually applied in excess. |
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