70-81 F-body door skin foam

rustover

Member
I'm getting ready to start working on the doors to the Camaro again. Next thing I have to do is put the new skins on. I'm planning on welding them on after I trial fit them to the car. I also want to feel the seams with epoxy, but that will be done after I gap the car because I will most likely do some edge welding.

I have a question on the flexible urethane foam. The original skins had several dabs of this stuff between the skin and the frame. I'm guessing this is done prior to the skin install, I don't think that you could get the gun/product in the door frame afterwards which would be ideal. My concern is the work time of the product. It just doesn't seem like enough time. (Sems is 15-25 seconds), 3m has one that is about 5 min. I guess I will just try to mimic the dabs the factory had, then set the frame in place. Also will these dabs of foam prevent moving the door skin prior to welding during a trial fit to the car. Maybe I'm over thinking it because I'm not sure how hard this foam gets. What do you guys suggest. Thanks Russ

 
The 3m one was designed by Duramix about 18 years ago, it is designed to apply after the skin is in place and will not pull skin in or push out, they use to demo this in a crunch coke can and it would not move the aluminum. Same for hood flutter.
 
The SEM also didn't pull or push, but it has to be applied after the skin is on, work time is short.
 
Thanks for the replies guys. That's what I was thinking is that it would go on after the skin. Is there a product that could be used just prior to setting the skin on the frame? I have one door that is still together and I'm going to look to see if there is any way to get the caulk gun inside the shell after the skin is installed. I might be able to, but the foam would be at the bottom of the brace vs the top.
 
Add a pece of flexible hose to the end of the mixing wand, test it on the assembled door and see if you can get it in there. I've also used 3M Ultrapro urethane seam sealer in these areas during install but you won't be able to move the panel around much once it sets up. Don't ever use windshield urethane for something like this-made that mistake once.
 
Bob Hollinshead;n79900 said:
Add a pece of flexible hose to the end of the mixing wand, test it on the assembled door and see if you can get it in there. I've also used 3M Ultrapro urethane seam sealer in these areas during install but you won't be able to move the panel around much once it sets up. Don't ever use windshield urethane for something like this-made that mistake once.

Thanks Bob. I will give that a try. Still need to order my supplies also. Its pretty tight area. If I can't then I may just use the Ultrapro.
 
I wish I had a schutz sprayer like the factory had. On restos duplicating those vertical lines from the pattern of that gun is difficult. The 1st gen camaros usually had a z shaped application pattern in the quarters in the trunk area that's always visible.
 
Barry;n79884 said:
The 3m one was designed by Duramix about 18 years ago, it is designed to apply after the skin is in place and will not pull skin in or push out, they use to demo this in a crunch coke can and it would not move the aluminum. Same for hood flutter.

Do you remember the part number for the 3M stuff ? THX!
 
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