Paint prob.
Thread Starter
Racer
Joined: Nov 2007
Posts: 279
Likes: 0
From: Forrest City Ar
Paint prob.
During the time I was doing my engine & tras swap I had my car outside covered up with plastic. Now the paint has spots where the plastic did somthing to it. I had the car to a restorer about a seperate fiberglass issue and he said that the spots would not buff out and this is common when you cover a vette with plasitc. Has anyone heard of this before?
Racer
Joined: Jul 2007
Posts: 444
Likes: 0
From: Roselle IL
I do not have any experience like this, but I can easily see how a plastic tarp could cause permanent surface scarring. However, I can't imagine anything that would absorbed INTO a 2k clear coat. I am not certain that buffing would remove all stains. I could imagine stains that wouldn't buff out. Remember, most buffing is not abrasive and uses heat to kind of melt and mold the outter surface, not remove it like sanding.
Do you know what type of paint is on the car? If it is a 2 stage (base coat + clear coat) you should be able to easily wet sand the stain area (2000 grit is probably enough) to remove a slight layer and then buff back the shine. If these stains are all over the car, it would be a lot work. I wet sanded and buffed my car after painting this winter.
Good luck
Do you know what type of paint is on the car? If it is a 2 stage (base coat + clear coat) you should be able to easily wet sand the stain area (2000 grit is probably enough) to remove a slight layer and then buff back the shine. If these stains are all over the car, it would be a lot work. I wet sanded and buffed my car after painting this winter.
Good luck
Le Mans Master
Joined: Apr 2005
Posts: 6,335
Likes: 416
From: Seattle Area WA
Yep, isn't it basically a mildew problem Wayne? The same thing used to happen a lot when folks were using those black bras in the 80s and left them on after a rain. The whole front end would get those gray and black "mildew" spots.
Thread Starter
Racer
Joined: Nov 2007
Posts: 279
Likes: 0
From: Forrest City Ar
Didn't think the guy was really BS ing cause the guys got 28 C-1 in all states of condition from a 53 with 23,000 miles to some basket cases but I also didn't want to commit to a $5000 2month paint job with out exploring options. As for the paint on the car Isure that it has clear coats. What type of sander do you us or do you do it by hand?
Drifting
Joined: Jan 2008
Posts: 1,962
Likes: 5
From: Schererville IN
Didn't think the guy was really BS ing cause the guys got 28 C-1 in all states of condition from a 53 with 23,000 miles to some basket cases but I also didn't want to commit to a $5000 2month paint job with out exploring options. As for the paint on the car Isure that it has clear coats. What type of sander do you us or do you do it by hand?
Get some second opinions on if it can be sanded out or not.
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Melting Slicks
Joined: Dec 2006
Posts: 2,669
Likes: 3
From: Kingston Ontario
If wetsanding and buffing is not something you have done before then bring the car to a professional detailing shop, get their opinion and have them do the job for you. This will be money well spent and probably save you a new paint job. If not done properly it is amazingly easy to cut right through the clear coat. 
Last edited by dannyman; Jun 4, 2008 at 09:04 PM. Reason: sp
Former Vendor
Joined: Oct 2007
Posts: 2,092
Likes: 2
From: walpole ma
Plastic and the water cause a reaction on the paint leaving marks.It doesnt matter if it is a vette or a steel car.
Thread Starter
Racer
Joined: Nov 2007
Posts: 279
Likes: 0
From: Forrest City Ar
since I have some problems that will at some point require a compleate repaint I have nothnig to lose by trying to wet sand. I will have to do it myself since I live in small town USA and have no pro detail shops available.
Melting Slicks
Joined: Apr 2004
Posts: 2,008
Likes: 38
From: Space Coast Gator Territory
This is a common problem. A few years ago I was looking for a 78-9 Corvette. A dealer had an original 18K mile black 78 that had to be repainted. It was stored with a cover that left white marks. He believed them to be mineral stains from water that collected under the cover. That water wouldn't have minerals as it is like distilled. He said they wouldn't sand or buff out, so they needed to repaint the car. It was too bad, because it was perfect otherwise and would have made a great survivor car.
BTW...that 78 L48 fully optioned car sold for $19K for those who keep knocking the prices of late C-3 cars.
BTW...that 78 L48 fully optioned car sold for $19K for those who keep knocking the prices of late C-3 cars.
Last edited by Red 69; Jun 4, 2008 at 09:53 PM.
Racer
Joined: Jul 2007
Posts: 444
Likes: 0
From: Roselle IL
This is a common problem. A few years ago I was looking for a 78-9 Corvette. A dealer had an original 18K mile black 78 that had to be repainted. It was stored with a cover that left white marks. He believed them to be mineral stains from water that collected under the cover. That water wouldn't have minerals as it is like distilled. He said they wouldn't sand or buff out, so they needed to repaint the car. It was too bad, because it was perfect otherwise and would have made a great survivor car.
BTW...that 78 L48 fully optioned car sold for $19K for those who keep knocking the prices of late C-3 cars.
BTW...that 78 L48 fully optioned car sold for $19K for those who keep knocking the prices of late C-3 cars.
In that example, the paint would have likely been lacquer. I can see that happening in lacquer, as it doen't harden; only the liquid carrier evaporates. I don't see that kind of stain, even mold, penetraing much beyond the surface of a 2K clear coat. I would not give up that easy. Assuming it is a clear coat, go to the auto paint store and buy some 2000 grit sand paper and pick a spot that is hard to see. Sand until the shine is gone and see if your stain disappears.
It takes quite a bit of sandiing with 2000 grit to go through clear coat.
Melting Slicks
Joined: Mar 2008
Posts: 2,989
Likes: 198
From: Meriden CT
In that example, the paint would have likely been lacquer. I can see that happening in lacquer, as it doen't harden; only the liquid carrier evaporates. I don't see that kind of stain, even mold, penetraing much beyond the surface of a 2K clear coat. I would not give up that easy. Assuming it is a clear coat, go to the auto paint store and buy some 2000 grit sand paper and pick a spot that is hard to see. Sand until the shine is gone and see if your stain disappears.
It takes quite a bit of sandiing with 2000 grit to go through clear coat.
It takes quite a bit of sandiing with 2000 grit to go through clear coat.