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Best adhesive for fiberglass to metal bond


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#1 mclark999

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Posted 18 February 2012 - 01:12 PM

I know I could search through the archives, but I also know that technology and products change so I want current advice.

I'm going to be gluing my Velo Rossa tub to my Z next weekend.

What is your opinion on the best fiberglass to steel adhesive? Anything you would definitely tell me to avoid using?

Thanks for your advice,

Michael

#2 deja

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Posted 18 February 2012 - 04:40 PM

I know I could search through the archives, but I also know that technology and products change so I want current advice.

I'm going to be gluing my Velo Rossa tub to my Z next weekend.

What is your opinion on the best fiberglass to steel adhesive? Anything you would definitely tell me to avoid using?

Thanks for your advice,

Michael


I used 3M 08116 panel adhesive to glue my flares and side skirts. I am very happy with the results. You will need a duel caulking gun which is about $70 but it mixes the stuff as it comes out so you know its mixed right. 08116 has a fairly long setup time so you have time to adjust if you need to. You probably want to get some extra nozzles for it too since you can't reused them.
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#3 yellowoctupus

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Posted 22 February 2012 - 06:43 PM

Kitty hair seemed to work pretty good putting a fiberglass scoop on my 65 Mustang. I also put in countersunk rivets every 2" or so, so cracking loose from vibration shouldn't be an issue.
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#4 gearheadstik

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Posted 22 February 2012 - 06:58 PM

Go to the local auto paint store and ask..As deja said 3M and SEM make a bunch of these products that are bullet proof... High dollar but I had a rep do a demo when I worked in a body shop that showed them being stronger than welds, pulled w the frame machine and showed more psi to pull apart the glue... Most new cars like camaros and such have their panels glued on with this stuff...
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#5 Derek

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Posted 23 February 2012 - 03:23 AM

I used panel adhesive on all my rust repair panels and haven't had a problem. Expensive but worth every penny.

Derek
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#6 Heroez

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Posted 23 February 2012 - 05:42 AM

I work in the industry and this is what you should use. Same thing Freightliner uses to glue on their fiberglass roof caps. Posted Image With a 90 minute work time you likely wont need more than one mixing nozzle. Panel bond would work to. I have extra cases of new cartridges of both. Let me know how many cartridges you want and I can save you a few bucks.

Edited by Heroez, 23 February 2012 - 06:59 AM.

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#7 Zman0690

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Posted 25 February 2012 - 04:39 PM

I would love to know the difference between 08116 vs 08274 and why you would recommend 08274 over 08116. I am also going to be applying fiberglass over metal and am looking for the absolute best of what will eventually fail and crack my paint. At least that's what everyone keeps telling me. Any insight from someone in the industry would be greatly appreciated.

Josh
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#8 Nelsonian

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Posted 25 February 2012 - 05:45 PM

Any opinions or experience with SEM 39747 multi purpose panel adhesive? I too am in need of knowledgable info for the fg to metal bond.
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#9 Heroez

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Posted 25 February 2012 - 07:18 PM

I use 08115 panel bond. 08274, Its used to bond fiberglass to metal by motor manufactures, and other uses. Its basicly the same thing as panel bond, but small differences that dont really matter much. Both of them are much better than Fusor that used to be commonplace 10 years ago. For making the transition from fiberglass to steel, panel bond would be a great added step to the bonding process. There are other 2 part products that are handy too. There is a plastic repair material with work time as fast as 50 seconds, 3 minute, that comes in handy for repairing ABS type plastics. Bumper covers, plastic trim. Clear epoxies. You can use denatured alcohol to wipe around edges and it wont interfere with the curing of the epoxy. Another tip on cleaning up is to allow it to wait untill it starts to kick to clean it up. Wait for the stage when its like wax, and trim excess with a razor, pulling it off. Any residue on a surface is easily cleaned up right after trimming. You can treat edges like caulking to give a clean look. Mask off the lines, smooth it down and then pull off the tape.
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#10 Zman0690

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Posted 26 February 2012 - 07:10 PM

Ok I'm really lost now. At first it seemed like you were recommending 08274 and now it seems like you are saying 08115 is the way to go. Or are you saying that it doesn't matter because they are basically the same? If so what ARE the differences?
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#11 Heroez

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Posted 27 February 2012 - 04:50 AM

I would use 08274 because the cartridge fits into my pneumatic glue gun. I could empty that cartridge in less than a minute. The 08115 is made to fit a smaller gun and the small one I have is hand powered. It would take much longer to get all around the the car with manual cartridge panel bond. The difference between the 2 is the lable, quantity and cartridge style. The goo inside is the same.

Edited by Heroez, 27 February 2012 - 06:13 AM.

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#12 Heroez

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Posted 27 February 2012 - 04:57 AM

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#13 Nelsonian

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Posted 27 February 2012 - 05:27 AM

Heroez,

How much do those pneumatic glue guns usually go for? any brand recommendations?
Nelsonian, San Diego, CA.

#14 Heroez

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Posted 27 February 2012 - 06:17 AM

If you dont want to spend a bunch of money on a pneumatic gun, the 08115 is the way to go. If you do this a lot, get 08274 and the pneumatic gun. I will get a current price for the larger gun and report back.
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#15 Heroez

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Posted 27 February 2012 - 07:08 AM

The rep for our supplier says the air powered guns are about 200 dollars. The one in my picture is a Swiss made gun by Mixpac. Type DP 400-85. Its been used for over 8 years and will go several more. It will likely be operating the day its phased out. Yes its been dropped a lot. Had cartridges explode in it. Its so robust I havent seen or payed attention to another brand or model. Sorry about the confusing posts. My concentration is not good. Spent a day out in a drizzle rain chasing a ghost on an 83 turbo and got sick.
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#16 GOTHALOSISM

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Posted 27 February 2012 - 07:44 AM

Sounds like you inhaled that ghost you were chasing.
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#17 Heroez

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Posted 27 February 2012 - 08:56 AM

Ha! I dont know who is worse off, me or the 83. We have the same problem, we can get started but dont go very well.
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#18 z-ya

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Posted 04 March 2012 - 03:31 PM

I used the Fusor 127EZ to bond my fiberglass flares. You need to prime the bare steel with epoxy primer. They aren't coming off easily.... :)
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#19 JohnH

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Posted 12 March 2012 - 10:33 AM

I don't trust chemical adhesives with differing types of materials. I would pop rivet the parts on then blend the seams into the existing body work. Old school but its tried & true.

#20 Heroez

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Posted 12 March 2012 - 11:14 AM

Would you like some panel bond to play with John?
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