 Windshield install with butyl - is butyl primer needed? |
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| Kansas 914 |
 Jun 23 2017, 07:41 AM
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#1
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Advanced Member  Group: Members Posts: 2,999 Joined: 1-March 03 From: Durango, Colorado Member No.: 373 Region Association: Rocky Mountains 
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I have brand new paint on the car. I remember the last time I had a windshield installed by I don't think the installer used primer.
Is it best to prime the frame first and is butyl primer the right stuff? Like this? https://www.amazon.com/CRL-Pinchweld-Primer...uct_top?ie=UTF8 |
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| bbrock |
Jun 23 2017, 05:58 PM
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#2
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914 Guru Group: Members Posts: 5,269 Joined: 17-February 17 From: Montana Member No.: 20,845 Region Association: Rocky Mountains
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With luck, I'll be facing this task in the not too distant future. Other than originality, are there reasons to stick with butyl instead of moving to a modern urethane seal? (IMG:style_emoticons/default/confused24.gif)
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| Dave_Darling |
Jun 23 2017, 10:07 PM
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#3
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914 Idiot Group: Members Posts: 15,063 Joined: 9-January 03 From: Silicon Valley / Kailua-Kona Member No.: 121 Region Association: Northern California
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QUOTE(bbrock @ Jun 23 2017, 04:58 PM)  Other than originality, are there reasons to stick with butyl instead of moving to a modern urethane seal? (IMG:style_emoticons/default/confused24.gif) I have heard reports that the urethane does not give as much as the butyl does, and windshields tend to crack more easily when installed in our flexy fliers with urethane than with butyl. No experience myself, but I used butyl on my car and it is holding up well. --DD |
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| bbrock |
Jun 23 2017, 10:49 PM
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#4
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914 Guru Group: Members Posts: 5,269 Joined: 17-February 17 From: Montana Member No.: 20,845 Region Association: Rocky Mountains
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QUOTE(Dave_Darling @ Jun 23 2017, 10:07 PM) QUOTE(bbrock @ Jun 23 2017, 04:58 PM) Other than originality, are there reasons to stick with butyl instead of moving to a modern urethane seal? (IMG:style_emoticons/default/confused24.gif) I have heard reports that the urethane does not give as much as the butyl does, and windshields tend to crack more easily when installed in our flexy fliers with urethane than with butyl. No experience myself, but I used butyl on my car and it is holding up well. --DD Makes sense. I've installed two 914 windshields many years ago and the butyl also seems like it would be easier, but no direct experience with urethane. Just wondered if there was any advantage. I like the idea of sticking with what's familiar. BTW, on the two windshields I did, one was done with and the other without primer. I definitely preferred the primered install for all the reasons already mentioned (better stick, and leaves a nice black welt). |
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Posts in this topic
Kansas 914 Windshield install with butyl - is butyl primer needed? Jun 23 2017, 07:41 AM
76-914 I did not use any however I did prep with Lacquer ... Jun 23 2017, 07:48 AM Mark Henry What size is the correct butyl...it's the tape... Jun 23 2017, 08:00 AM
mepstein
What size is the correct butyl...it's the tap... Jun 23 2017, 08:07 AM Mark Henry
What size is the correct butyl...it's the ta... Jun 23 2017, 08:09 AM Kansas 914
[quote name='Mark Henry' post='2499469' date='Jun... Jun 23 2017, 08:11 AM Dave_Darling Using the primer is not necessary, but it does hel... Jun 23 2017, 09:24 AM Perry Kiehl Butyl primer will improve the seal. For $17 ... Jun 23 2017, 09:35 AM Kansas 914
Butyl primer will improve the seal. For $17... Jun 23 2017, 10:45 AM Mikey914 no primer required
New paint not needed for sure.... Jun 23 2017, 02:39 PM porschetub
Other than originality, are there reasons to stic... Feb 12 2020, 01:04 PM Perry Kiehl Butyl tape is a consistent thickness, in this case... Jun 23 2017, 09:10 PM Montreal914 For the rear window, I have used 5/16 butyl about ... Jun 23 2017, 09:45 PM stevegm 914rubber’s kit is 9.5 mm, which is 3/8”.
I h... Feb 11 2020, 07:22 PM bbrock
914rubber’s kit is 9.5 mm, which is 3/8”.
I ... Feb 11 2020, 08:55 PM stevegm
914rubber’s kit is 9.5 mm, which is 3/8”.
I... Feb 11 2020, 09:11 PM bbrock
[quote name='bbrock' post='2785159' date='Feb 11 ... Feb 11 2020, 09:36 PM stevegm
[quote name='stevegm' post='2785165' date='Feb 11... Feb 11 2020, 09:55 PM 914werke
Other than originality, are there reasons to stic... Feb 11 2020, 08:18 PM ConeDodger I did this alone but another set of hands would be... Feb 11 2020, 08:30 PM lierofox https://www.amazon.com/gp/product/B00473W5V...=UTF... Feb 11 2020, 08:32 PM stevegm
https://www.amazon.com/gp/product/B00473W5V...=UT... Feb 11 2020, 09:10 PM lierofox
So you just put the primer on the windshield chan... Feb 12 2020, 01:06 PM mepstein The warmer the better. Mark / Mikey explained the ... Feb 12 2020, 01:20 PM |
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