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View Full Version : My trunk is flexing


aany001
09-04-2013, 06:32 PM
Hey guys my aftermarket trunk lid on my 69 Camaro is flexing. Im guessing because it has no bonding glue to adhere the outer and inner panel together. What can I use to remedy this and not warp the outside panel.

Rick D
09-04-2013, 06:47 PM
Get an org lid, just sayin!!

I've tried to use the aftermarket ones in the past on a few customers cars and had to either fix their org or get another usable org lid. They all flex from what I've seen.

I have heard that the one that Heartbeat City sells is nice but I have no first hand use. Sorry!!

aany001
09-04-2013, 06:49 PM
Holy crap now im stressed cause its ready for paint!!

Vince@Meanstreets
09-04-2013, 10:52 PM
how about this? take it off, flip it over and body adhesive the hell out of it. :hello: think that'll work rick?

Rick D
09-05-2013, 05:46 AM
how about this? take it off, flip it over and body adhesive the hell out of it. :hello: think that'll work rick?

Nope there isn't any open seams on the under side :poke:

I did try this once, I drilled some holes on the underside bracing and used rigid pillar foam from 3m and filled the crap out of all the bracing. It helped a lot, then I used panel bond to close up the holes as if you try to weld them up the pillar foam will melt and burn.

Still nothing better then an OE trunk lid for a 1st gen.

By the way I have one that you could have? It needs some repair on the underside in the corners but still better then the aftermarket ones? Shipping to up north may be cost a bit? How far are you from the UP Mi? I'll be there next week for work?

tubbed69
09-06-2013, 06:18 AM
hey Steve you can drill some 1/8 holes in the lip that folds over and tack weld in these holes and it makes a huge difference,the skins is really loose from the inside on alot of these aftermarket ones,mine is tacked in all four corners and it made it real stiff

aany001
09-06-2013, 06:20 AM
Jeff we did that and it got better but still wanna get it better. Any ideas of any epoxy or body panel adhesive I could use?

Rick D
09-06-2013, 06:55 AM
Jeff we did that and it got better but still wanna get it better. Any ideas of any epoxy or body panel adhesive I could use?

3m panel bond 8115

https://www.google.com/url?sa=t&rct=j&q=3m%208115%20body%20panel%20adhesive&source=web&cd=1&ved=0CDkQFjAA&url=http%3A%2F%2F3mcollision.com%2F3m-panel-bonding-adhesive-08115.html&ei=Zt4pUpqhKIqEyAGBrYHICA&usg=AFQjCNHGKkdn8IIXvEvJVbIzktxaEFxHYA&sig2=oEe316w8eTGLQAs9vx_LTQ&bvm=bv.51773540,d.aWc

And here is the foam I have used in the past.

http://solutions.3m.com/wps/portal/3M/en_US/Marine/Home/Products/Catalog/?PC_7_RJH9U5230GE3E02LECIE20S4K7000000_nid=GSLTMTP 63TgsQH8HT14PGTglJ3XN7JWC1Cbl

aany001
09-06-2013, 06:56 AM
Thanks guys for the input. Gonna try this stuff when I get home!

aany001
09-10-2013, 08:22 PM
I was just reading about Lord Fusor 121/124 Flexible Foam (Super Fast) and it states that its purpose is to firmly attach outer panels to inner structures. Anybody used this stuff?

Rick D
09-11-2013, 05:54 PM
Yes I've used the Fuser products in the past, they are nice work very well. The only thing is for what you are trying to do the flexible may still move to much as it is flexible. Fuser also has a rigid foam that will do the same as the 3m product. If you unsure do a test first on a junk part? Stop by a body shop and ask them if they a an old trunk or hood you can have to play with, then try both products in the inner and see which one will give the most support?

aany001
09-11-2013, 06:52 PM
Rick I spoke with my supplier and yes he does carry the 3M panel bond so I ordered it and gonna try it on a test mule. Guys thanks for all the help!! Getting close to paint and Im stressed right out!!!!!!!:cheers:

Sales@Dutchboys
09-11-2013, 07:44 PM
Let us know how you make out. I've seen that same issue with the aftermarket decklids. Like Rick said for the 1st gens an original one is ideal..
The 3M Panel bond would help. It would be best I you could remove the skin and grind all surfaces down to bare metal and re install the skin onto the inner structure.
Like I said let us know how you do and feel free to give me a ring. Do you still have my number?

aany001
09-11-2013, 07:54 PM
Let us know how you make out. I've seen that same issue with the aftermarket decklids. Like Rick said for the 1st gens an original one is ideal..
The 3M Panel bond would help. It would be best I you could remove the skin and grind all surfaces down to bare metal and re install the skin onto the inner structure.
Like I said let us know how you do and feel free to give me a ring. Do you still have my number?

Ya Paul PM your digits.
Thanks
Steve

aany001
07-20-2014, 07:56 PM
I know its been awhile but just an update on my trunk lid. I drilled the lip with 1/8 drill bit and plug welded then added the rigid pillar foam and bingo shes nice now!!!!! Trunk lid feels real nice and sturdy!! Thanks guys for all the help!

Musclerodz
07-21-2014, 08:56 AM
Let us know how you make out. I've seen that same issue with the aftermarket decklids. Like Rick said for the 1st gens an original one is ideal..
The 3M Panel bond would help. It would be best I you could remove the skin and grind all surfaces down to bare metal and re install the skin onto the inner structure.
Like I said let us know how you do and feel free to give me a ring. Do you still have my number?

I uses a spot welder on them in 4-6 places. Takes care of any flexing once I get it where I want it.

frankv11
08-17-2014, 12:22 AM
Dummy question
Any pictures on where exactly this 1/8 wholes / spot welds are located.

aany001
08-17-2014, 06:13 PM
The welds are on the very edge of the inner trunk lid lip. Its where the outer skin meets the inner structure. I hope this helps.