 Don't USE 3M 77 For Roll Bar Vinyl, Peeling in less than a Week ! |
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| 914Sixer |
 Aug 29 2015, 09:30 PM
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#1
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914 Guru  Group: Members Posts: 8,863 Joined: 17-January 05 From: San Angelo Texas Member No.: 3,457 Region Association: Southwest Region 
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I put the roll bar pieces on Monday using 3M 77 Multipurpose Glue. Car has been in garage the whole time. Peeling off as we speak. You can run you hand along the side and the material begins to bubble up Tried to show it in the pictures.
Now to start all over (IMG:style_emoticons/default/headbang.gif) Attached image(s)  
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| Mueller |
Aug 29 2015, 09:40 PM
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#2
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914 Freak! Group: Members Posts: 17,146 Joined: 4-January 03 From: Antioch, CA Member No.: 87 Region Association: None
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The 90 stuff works better, but I've used the 77 on my speakers in my garage and they have held up fine....did you spray both sides and let get tacky before attaching?
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| euro911 |
Aug 29 2015, 09:47 PM
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#3
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Retired & living the dream. God help me if I wake up! Group: Members Posts: 8,845 Joined: 2-December 06 From: So.Cal. & No.AZ (USA) Member No.: 7,300 Region Association: Southern California
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I haven't had good luck with '77' either. Glued the top parts of the door panels over the window lips and the targa top pad ... they held up for about a week (IMG:style_emoticons/default/dry.gif)
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| 914Sixer |
Aug 29 2015, 09:49 PM
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#4
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914 Guru Group: Members Posts: 8,863 Joined: 17-January 05 From: San Angelo Texas Member No.: 3,457 Region Association: Southwest Region
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Yes, I took the time to read the directions. Made sure it was tacky. I NOW remember Mark (914 Rubber) saying something about it was NOT an ideal glue for this application.
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| 76-914 |
Aug 29 2015, 11:23 PM
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#5
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Repeat Offender & Resident Subaru Antagonist Group: Members Posts: 13,485 Joined: 23-January 09 From: Temecula, CA Member No.: 9,964 Region Association: Southern California
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(IMG:style_emoticons/default/agree.gif) Haven't used it in years. Find a auto upholstery supply and but whatever they sell.
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| bahnzai |
Aug 30 2015, 04:36 AM
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#6
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Member Group: Members Posts: 305 Joined: 26-July 06 From: Columbia, SC Member No.: 6,509 Region Association: South East States
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Wow, I wish I had know this earlier too. Spent the better part of a day doing that install. Guess we will see how that holds up now...doh!
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| Porschef |
Aug 30 2015, 05:44 AM
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#7
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How you doin' Group: Members Posts: 2,165 Joined: 7-September 10 From: LawnGuyland Member No.: 12,152 Region Association: North East States
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Ouch, that's unfortunate. I ended up using 90 when I redid mine about a year and a half or so ago, and haven't had a problem. I had it on hand and would have used the 77, thinking it might be overkill.
In retrospect I should have peeled the old vinyl and painted the sail panels to match the car. I like the look better... (IMG:style_emoticons/default/dry.gif) |
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| ConeDodger |
Aug 30 2015, 06:52 AM
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#8
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Apex killer! Group: Members Posts: 23,552 Joined: 31-December 04 From: Tahoe Area Member No.: 3,380 Region Association: Northern California
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77 not made for getting hot. Sunlight will reactivate adhesive. (IMG:style_emoticons/default/sad.gif)
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| EdwardBlume |
Aug 30 2015, 07:23 AM
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#9
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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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QUOTE(ConeDodger @ Aug 30 2015, 05:52 AM)  77 not made for getting hot. Sunlight will deactivate adhesive. (IMG:style_emoticons/default/sad.gif) (IMG:style_emoticons/default/agree.gif) (IMG:style_emoticons/default/agree.gif) Going on its loose too. I used the can as a roller and rolled the air out. You might get a few happy years out of the 77 if you stay on it as it dries... |
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| puffinator |
Aug 30 2015, 08:23 AM
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#10
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Member Group: Members Posts: 193 Joined: 6-August 13 From: Annapolis, MD Member No.: 16,218 Region Association: MidAtlantic Region |
I used 3M 80 and it worked out fine. I also tried 3M 74 and 77 and was not pleased with either.
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| Shadowfax |
Aug 30 2015, 08:40 AM
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#11
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Show us the meaning of haste Group: Members Posts: 509 Joined: 19-January 15 Member No.: 18,340 Region Association: South East States
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I'm planning on using DAP Weldwood contact cement. Used it on a BMW E30 headliner a few years back and it worked better than the spray adhesives I tried initially.
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| stinkindiesel |
Aug 30 2015, 09:38 AM
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#12
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Member Group: Members Posts: 184 Joined: 14-June 13 From: Georgetown, TX Member No.: 16,012 Region Association: Southwest Region |
I had a similar experience with a VW Golf headliner and 3M 77. Lasted about 6 months before it started to come loose again. At the time I did it, 77 was what everybody else was using, but Texas summers tend to break down adhesives faster...
Gary |
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