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Old 05-30-2011, 09:01 AM
 
703 posts, read 2,720,423 times
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So I got a pretty good 3-4 cm scratch (deep enough that finger nails would get caught in) on my new car a couple of days ago and decided to try my hands at wet sanding with the Turtle Wax Scratch Repair Kit. Anyway, in my overzealous attempt at perfection (should have stopped after first round), I over wet-sanded the area, so that I now have a lighter colored blemish around the scratch itself. I'm guessing I went into the clear coat and any additional wet sanding attempt will simply enlarge the blemish. My question is mainly, should I leave it as is (with the cloudy blemish around the scratch, is there any possible future damage, i.e. oxidation, etc?) or should I just apply touch up paint to the entire area and leave it at that? The scratch is completely gone, now the blemish remains.
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Old 05-30-2011, 11:35 AM
 
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You sanded through the clear coat and went into the color coat , I would try a little of the car wax that is color matched to the color of the car and see if that will hide the blemish. Trying to make a spot repair using paint is something you better practice doing first on another car before you try it on your new one.
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Old 05-30-2011, 11:59 AM
 
Location: Planet Eaarth
8,955 posts, read 18,535,497 times
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Quote:
Originally Posted by psychofan View Post
So I got a pretty good 3-4 cm scratch (deep enough that finger nails would get caught in) on my new car a couple of days ago and decided to try my hands at wet sanding with the Turtle Wax Scratch Repair Kit. Anyway, in my overzealous attempt at perfection (should have stopped after first round), I over wet-sanded the area, so that I now have a lighter colored blemish around the scratch itself. I'm guessing I went into the clear coat and any additional wet sanding attempt will simply enlarge the blemish. My question is mainly, should I leave it as is (with the cloudy blemish around the scratch, is there any possible future damage, i.e. oxidation, etc?) or should I just apply touch up paint to the entire area and leave it at that? The scratch is completely gone, now the blemish remains.
Sorry, but the bad news is to correct your botched attempt you need a body shop to repaint it.

Two things here.....
If you intend to keep the car until it dies then repair it as you want to or do nothing.

If you trade often the scratch will cost you more than a repaint in lost trade in value so get it fixed.

Last edited by Grandpa Pipes; 05-30-2011 at 12:35 PM..
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Old 05-30-2011, 12:05 PM
 
703 posts, read 2,720,423 times
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Here's a closeup of the area. Ignore the horizontal line below the blemish, that's just a reflection.

Again, it's all smooth and consistent (even before I put wax back on).


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Old 05-30-2011, 12:34 PM
 
Location: Planet Eaarth
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Please re-read my post. As it is now.......you're stuck.
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Old 05-30-2011, 01:08 PM
 
703 posts, read 2,720,423 times
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Originally Posted by Tightwad View Post
Please re-read my post. As it is now.......you're stuck.
Right, I know I'm stuck. Anyway, if I do nothing at this point, will the paint/metal be fine? My primary concern right now is will this lead to peeling and rusting. It's slightly unsightly, but not too noticeable and I can live with it (albeit somewhat begrudgingly).
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Old 05-30-2011, 03:08 PM
 
Location: Columbia, California
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From the photo it does not look like it is down to the metal so rust should not be a issue.
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Old 05-30-2011, 06:30 PM
 
Location: Planet Eaarth
8,955 posts, read 18,535,497 times
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Quote:
Originally Posted by psychofan View Post
Right, I know I'm stuck. Anyway, if I do nothing at this point, will the paint/metal be fine? My primary concern right now is will this lead to peeling and rusting. It's slightly unsightly, but not too noticeable and I can live with it (albeit somewhat begrudgingly).
Just brush a light coat of clear and move on if you don't want to fix it right.
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Old 05-30-2011, 07:41 PM
 
Location: U.S.A.
3,306 posts, read 10,174,628 times
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Try some finish cut compound and then a wax... that's the best you can do.
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Old 05-31-2011, 05:21 AM
 
Location: Michigan--good on the rocks
2,544 posts, read 3,768,732 times
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You've sanded through the clear coat. The underlying base coat is porous. There is likely a sealer under the base coat that will provide some protection, but you have opened it up so that moisture can get through. Yes, eventually the metal will corrode in that area.

Rule of thumb: If you can feel a scratch with your fingernail, you won't be able to sand it out.
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