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Old 05-14-2018, 10:20 AM   #1
aotte1
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3M Panel Adhesive 08115

Maximum 3M recommendation exposure temperature for 08115 panel adhesive is 180 degrees.
Called 3M technical support for this information at 877-666-2277, and received this information,



Note:RELEACE temperature is 400, panels will come apart. Degradation starts at much lower temperature around 300, this is for short term exposure to heat.

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Old 05-22-2018, 09:54 PM   #2
LostMy65
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Re: 3M Panel Adhesive 08115

I've thinking of going that route with some of my floor panels.
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Old 05-23-2018, 01:50 PM   #3
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Re: 3M Panel Adhesive 08115

Where your seat bolts in. Weld them.

Quote:
Originally Posted by LostMy65 View Post
I've thinking of going that route with some of my floor panels.
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Old 05-28-2018, 12:07 PM   #4
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Re: 3M Panel Adhesive 08115

My God how time flies! Here is a science project my son did 11 years ago!

http://www.hotrodders.com/forum/weld...ct-116090.html

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Old 05-28-2018, 12:13 PM   #5
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Re: 3M Panel Adhesive 08115

We then did this follow up test after I got guys peeing their pants because I didn't do a "peel" test. http://www.hotrodders.com/forum/foll...vs-145782.html

Brian
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Old 05-29-2018, 10:02 AM   #6
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Re: 3M Panel Adhesive 08115

And with any water infiltration rust will creep under the glue joint and it will fail. You can rust through the material itself but a butt joint is less susceptible to corrosion than a lap joint. While epoxy is supposed to make it bullet proof in terms of corrosion everything I've seen couldn't be further from the truth. Get so much as one spot compromised on the panel anywhere near the glued lap joint and corrosion will creep under the glue. This results in a total failure very quickly. Floors and in particular components where safety is involved is not the place to experiment with this kind of stuff.

I agree that a glue joint is very strong but is that only under ideal conditions. I see adhesive failures from poor preparation and water infiltration. Where I work we use literally tons of adhesives in vehicle construction. When I design I will only trust seat mounting to bolting and welding. We test seat mountings to pass FMVSS and CMVSS standards. I've overseen more than 10000 vehicles manufactured with the extensive use of different types of adhesives.

I understand this stuff pretty well and I wouldn't trust it for steel panel boding in areas where not only seat but seat belts are involved.
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Old 05-29-2018, 03:23 PM   #7
LostMy65
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Re: 3M Panel Adhesive 08115

Thanks for the info.
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Old 05-30-2018, 06:15 AM   #8
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Re: 3M Panel Adhesive 08115

Proceed with caution in using for exterior panel attachment, as any flanged repair will likely produce ghost lines in the final finish, as seen here on this tail gate.....


https://www.youtube.com/watch?v=OGhFEfVqxb0


......showing EXACTLY where the repair took place.
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