stripping a newer car
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So I have a car that is only 10 years old but it has been painted over twice and the second time wasn’t done very well so it’s chipping pretty good. So I’m not sure what I should do. I have a small shop and this car is supposed to be literally in a car show so I really don’t want to mess anything up with the paint remover.
I want to know what you guys think about the stuff and if it’s even worth it in this case. Maybe there’s an alternative that is less aggressive?If the paint is failing now it needs to be stripped, it would be senceless to invest time and materials into another job that will eventually fail also, I havent had much luck with chemical stripper in the past but if you dont want to use chemical stripper you can also soda/sand blast or use a stripper wheel on a sander. Just be carefull not to create to much heat and warp the panel.
id hit it with 80 grit. feather the chips out, block it and prime
The dude I work with said he used to do a ton of Corsica’s back in the day for paint failures. He said he used to use a razor/scraper. My boss used to work at the same place as this guy and apparently he was able to do them so fast that GM sent a team down to learn what he was doing. I guess he was doing 3 times what anyone else could. This old dude is an animal though….so….
These things are wicked. Depending on the paint I will use these (I have them in 8″ 🙂 ) and/or 36 on my 8″ rotary sander. Mows it down.
Alright well I like to know your opinions on just using 40 grit to bring all the edges of the panels to bare metal. Or would 40 be too course? Then I bring it to 120 and prime the entire car in the best stuff I can find? Does this sound like something that someone would do for a good customer or is this a mistake?
40 grit might gouge out the metal, i would suggest 80 grit or a stripper wheel.
40 grit is pretty rough. If you use that, be prepared to use slick sand or something like that to fill up the scratches. Ive done it many times, and I usually make sure I leave it sit a while to be sure there is no shrinking. Never had a problem, but I would hate to tell you to do it and have something happen. And 80 grit would be better, but that would take you a while to do. Choose your poison.
Using slicksand over 40 grit I would be worried about adhesion more than shrinking. I would never spray anything over that grit. I would much rather use P120. If you need to use coarser grits to strip, make sure to refine them before spraying over top of them.
BTW it doesn’t matter how long you let primer or spray poly sit. It cures rather fast. If your worried give it a day or two. Letting primer sit long periods of time will not help with shrinking if the scratch under it is too deep. Remember your undercoats need to cure faster than topcoats. If wouldn’t be a good idea if your clear cured faster than the primer(which is the foundation)underneath.
I only use the 36 or 40 to knock off the bulk of it. Then I hit it with the strip off wheel, which takes that rough-sanded paint/primer right down lickity split.
I make a point to bring it up to a fairly even 80 grit before I seal it up with epoxy, then blast poly primer on it.
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