previous body work
Thread Starter
Instructor
Joined: Mar 2011
Posts: 165
Likes: 31
From: space coast florida
previous body work
I'm new to Vette body work. Took the front clip of my 79 to fix the birdcage rust. It looks like the wrong bonding agent was used, here's a pic of the firewall. Left side has what looks like a hard polyurethane on it. Does this look right, and should I remove all this crap?
Pro
Joined: Nov 2016
Posts: 729
Likes: 118
From: Kelowna British Columbia
PIC msissing
I'm new to Vette body work. Took the front clip of my 79 to fix the birdcage rust. It looks like the wrong bonding agent was used, here's a pic of the firewall. Left side has what looks like a hard polyurethane on it. Does this look right, and should I remove all this crap?
Safety Car
Joined: Feb 2012
Posts: 4,705
Likes: 983
From: Orlando FL
I don`t see a picture either, but if you remove & re-attach body panels, you will need to remove ALL the previous bonding agent, (no matter WHAT it was), and make the mating surfaces smooth before applying new adhesive.
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Joined: Sep 2013
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From: New Or-leens Loo-z-anna
I have similar problems on my project car. I had to rebuild/re-fiberglass bonding points that were damaged...it was worth the extra work to have solid bonding points/areas.
Instructor
Joined: Apr 2006
Posts: 123
Likes: 103
From: Abingdon Maryland
The adhesive looks original at the surround panel, can"t tell from the picture if it is on the fender. A 50 grit 3" roloc on an angle grinder will clean that up in about 30 min. All the original adhesive doesn't have to be removed.
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Thread Starter
Instructor
Joined: Mar 2011
Posts: 165
Likes: 31
From: space coast florida
The bonding agent on right side of my car looks like yours, which I assume was the factory stuff.
I realize that I'm going to have to remove enough from the panels to have a relatively smooth surface to bond to. It's that the black stuff used on the left side looks like it there was too much put on and it didn't stick to the fender and splash well in most places. I've seen similar things on SMC jet ski hulls that were patched with polyester resin which doesn't bond to epoxy..same thing here?
How do I get to the rivets behind the fresh air intake? I can get one from inside the birdcage, but from the AIM, there seem to be more.
I realize that I'm going to have to remove enough from the panels to have a relatively smooth surface to bond to. It's that the black stuff used on the left side looks like it there was too much put on and it didn't stick to the fender and splash well in most places. I've seen similar things on SMC jet ski hulls that were patched with polyester resin which doesn't bond to epoxy..same thing here?
How do I get to the rivets behind the fresh air intake? I can get one from inside the birdcage, but from the AIM, there seem to be more.