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Old 02-24-2012, 03:38 PM
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roof rust on 73 buick

The Buick I'am in the middle of doing has some nasty roof rust where it had a half vinyl roof. It needs a used roof panel but the owner doesn't want to put that much into it. Plus finding one is going to be tough if not impossible.My thought is to fill the roof panels with expandable foam and dura-glass it. I did this on a late 90s ford van 2 yrs ago that had rusted so bad the windshield was loose across the top.I just called the guy because I know him and he said it has been working great and there's not so much as a bubble in the roof yet. Anyone have any other quick cheap fixes.
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Old 02-25-2012, 04:57 AM
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Yikes,not me.your way sounds fast and cheap
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Old 02-25-2012, 05:28 PM
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I filled the roof with two cans of great stuff foam from Menard's. About $15.00 then ground off any foam from the top and filled with dura-glass. Hit that with the mud hog and put a coat of plastic on it. Should be-able to sand it tomorrow with a light pass with mud hog then finish off with the air file.Then I'll give it a coat of spi epoxy and about 3 good heavy coats of roberlo 2-k primer. The stuff fills great 3 coats are about like 2 coats of the old feather-fill. At that point I should be-able to block sand it out.One plus to the foam is it stiffens up the roof panel so you don't get so much of that oil can flutter in the roof when your sanding making it easier to do your bodywork.
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Old 02-25-2012, 05:38 PM
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LOL ,your car is breaking out in boils .....On the down side if any water gets in there that foam might just suck it up or hold it making things worse later on.but who cares ,if it lasts 3-4 more years the guy got more than his money's worth and thats what counts...I'll bet its a better del for him than it is for you though...
I think I'd try to talk him into making it a vert first...

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Old 02-25-2012, 05:47 PM
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Oh by far but I've used this stuff before and it seams to be really water proof. As I said in my other post I did a van roof 2 yrs ago and it gets driven everyday here in mn and its still looks good.This one will only see summer time use.
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Old 02-25-2012, 05:52 PM
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I used that stuff to make some wierd shaped sanding blocks it worked pretty well..
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Old 02-27-2012, 11:29 AM
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foam

I cannot comment on using a household item for automotive use. But if it's working for you, kudos. It's probably the same stuff that we use in the auto world at a lesser price.
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Old 02-27-2012, 08:01 PM
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The question is - why doesn't your customer want it repair correctly and why he doesn't care how long it last? I would get a waiver from the custom, just in case it doesn't last long enough to keep him happy. Cheap never goes away!
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Old 02-27-2012, 09:36 PM
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customers do some kooky stuff. We have a 68 Camaro ss with a quarter panel that was mangled and rusty. My boss offered FREE labor on putting on a quarter if he only payed for the part and he said no. Turned out I had to weld a plate to pull in 5-6 different areas including the area mating against the taillight panel. The taillight panel was also pushed in and when I went to pull it out with a plate and slide hammer the darn thing ripped off the flange due to rust so he got charged 4 hours of labor for it. Had his cheap arse paid the money for a new quarter we might have repaired it for free with the quarter off. Just stupid.
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Old 02-28-2012, 06:17 AM
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Quote:
Originally Posted by ReflectImage
The question is - why doesn't your customer want it repair correctly and why he doesn't care how long it last? I would get a waiver from the custom, just in case it doesn't last long enough to keep him happy. Cheap never goes away!
Theres plenty of people that cant tell a good paint job from a cheap one ,I guess thats why there's so many economy shops around.Then again maybee it runs really well and the owner cant bare to part with it but realizes it isnt worth putting any money into and just wants a few more years out of it...
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Old 02-28-2012, 08:11 AM
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The guy has owed it for over 20 yrs. He going though it to make it more drivable but only uses it in the summer months. It a 73 buick regal that even if mint isnt worth all that much. You dont what to get 5 times the value in these old things.What Iam doing to it should easy get him another 5-10 yrs out of it. For what I'am charging him thats a good deal on his part. I got some 2-k on some parts yesterday plus almost finished the roof I've got it about 60% in primer and have about 40 hrs into it planned on 120 total when painted.Got one door, 1/4 panels and trunk filler left to do bodywork on
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Old 02-28-2012, 11:37 AM
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Just to keep your customer on the same page with you. I would ask him to initial photos that show the job in progress. Since you are trying to do him a favor he shouldn't have problem with this. This method of fix-up might keep the water out, but - is it structurally sound? Just make sure your guy has clear understanding of the job your are doing for him. Hind sight is 20-20! In our shop we wouldn't do a repair like this for fear that it would come back and never go away.
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Old 02-28-2012, 12:37 PM
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The roof is as strong as about any 73 you'll find in mn on a 40 yr old car. The inner roof panel is as the factory intended. The foam between the two panels won't change that. Back in the 70's 3-m came out with a foam for rust repair that worked fairly well but like everything else 3-m makes was way over priced so it didn't ketch on. It was a closed cell foam a lot like the newer flutter foam for doors and windshield posts. I'm not worried about the roof strength as is.
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Old 02-28-2012, 01:05 PM
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its so bad, it falls under the "you got nothing to lose at this point" category
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Old 02-28-2012, 05:05 PM
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Quote:
Originally Posted by swvalcon
The roof is as strong as about any 73 you'll find in mn on a 40 yr old car. The inner roof panel is as the factory intended. The foam between the two panels won't change that. Back in the 70's 3-m came out with a foam for rust repair that worked fairly well but like everything else 3-m makes was way over priced so it didn't ketch on. It was a closed cell foam a lot like the newer flutter foam for doors and windshield posts. I'm not worried about the roof strength as is.
That's good! At this point everything has been covered. Here's to you for research & sticking to your guns. I have nothing more to say.
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