Has anyone tried to get a scratch out of your clearcoat? When I say scratch, it can not be felt by using my fingernail, it is just a blemish in the clearcoat but I know it's there and it is driving me nuts.
I found this kit but am not sure what to think of it.
That kit will work. Personally I use some 3m white polishing compound - by hand for minor, with a buffer for more extreme. If you are new to this, I suggest you consider a "clay" kit - they are a bit more forgiving.
Langka is considered an excellent low-risk product to "smooth the blob."
Unline sanding, it's fairly risk-free. If you mess up with Langka, you remove your touch-up paint and start over. If y ou mess up with sanding, well...
Google around for: Langka paint repair
and you'll likely find some forums or articles and see what others think. The guys over at www.waxforum.com really like it.
The clay will help remove contaminants bnut it will not help with clearcoat scratches.
If you sand... i would suggest starting with 2000 and then moving to 3000 using a uni grit product.
I just sanded the hood on my car (About 3 hours work) and then used a fine compound (Optimum compound) with the PC and an aggressive pad to help work them out. It took about another hour to work out the fine scratches. And then a final polishing.
It seems that in the process I also removed that factory orange peel from the hood. The only drawback is that it looks so good that I have to do the entire car now...
I think I'd try a scratch remover by hand first (least-aggressive approach first)... something like the Mothers Scratch Remover, buffing lightly in varying directions.
Scratch removers tend to have fillers in addition to polishing agents, so they'll help to hide the scratch.
Though I'd trust the Langka products, it just may be more than you need, and the techniques tend to be more sophisticated for the average user.
If you sand too much, you've then got other problems.
Clay will remove orang peel, and it will remove fine scratches if you put enough elbow grease into it. I suggested clay only because it requires enough elbow grease so as to be very forgiving. Sanding is always a risky proposition, even for someone experienced in it. If you dont believe me, ask any (real) painter how many times he has had to repaint something because someone cut to deep wet sanding the car.
How can clay remove orange peel and scratches? Hmmm... If the clear is scratched it can either be filled, buffed (rotary or DA) or sanded smooth... As for orange peel, I found that on my car the peel was in the clear, not the base. Filing and buffing till the cows come how will not level out the surface. So, light sanding removed the peel. I tried light and medium cutting pads on the remainder of the car... although the spider webbing and minor surface imperfections are now gone, the orange peel is still there. I have yet to get the courage or the time to wet sand the entire car... maybe this would be a good summer project.
I think where people have observed that clay has perceived as removing scratches is that it removes the loose, rough edges -- but that's certainly not the purpose of the product.
If you can't feel it with your fingernail, using a common scratch remover product is the safest bet to be tried first... if that doesn't work satisfactorily for the particular scratch, then try some more advanced approach; or get a recommendation from a pro who you can yell at if he messes it up.
Clearcoat Scratch Fix 
