Sanding Scratches

JimKueneman

JimKueneman

Mopar Nut
Experience needed here.... I blocked my 4+4 coats of UC with 600 to get it flat and orange peel out. I then blocked with 800, 1000, 1500. I skipped the 2000 I have. I buffed it out and it looks great... almost. If you get it in florescent light and look at it at an angle it looks a bit cloudy... If you put on some magnifiers you can see very very fine scratches still.... where should I start with a re-sand? Any thoughts where I did not spend enough time? I am thinking at the 1500 and I should do 2000. If this was not such a dark color I don't think it would be noticeable.

Thanks,
Jim
 
jim, put a light on it and look closely. you say it looks cloudy. do you think its trapped between your clear layers? it certainly could be you just need to sand or compound more BUT with dark colors you really need to be careful when you double clear. i have more than once seen cloudiness on my job which is only noticeable when the light shines on it only to realize its sanding dust or slurry trapped between layers. now i always get a bunch of clean rags and wipe my sanded first layer of clear down with slow reducer. its really cleans things up and you can see when its clean.
 
If you are skipping 1200 I would spend longer on the 1500. Also incorporating 2000 into the mix will only help.

Are you set on stopping at 2000?

I usually stopped at 2000 on the first half of my truck. However once I read the success stories of continuing to 3000 and then with 8000 I had to try it. I'm glad I did as it is a noticable change for the better. For me It buffed out alot easier, and I think looked smoother when completed.
 
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Post some close pics with light if you can. I never skipped 2000 though & i can imagine how sandy things get there.
How many times did you hear the dreaded screech when blocking? Hope not many for ya.
Jim C has great point for cloudiness
 
What compounds are you using and pads? wool? Only reason I ask is because I know the compounds usually say they will buff our 1200+ you really gotta work for it to get it there.
 
If it were me, I would pick an area and buff it with twisted wool and Meguiar's M-100. Then recheck to see if the fine scratches are being removed. If so continue if not, try sanding with 2000 and then buff it again. If neither is working, the scratches may be buried as JimC suggested.
 
Jim C said:
jim, put a light on it and look closely. you say it looks cloudy. do you think its trapped between your clear layers? it certainly could be you just need to sand or compound more BUT with dark colors you really need to be careful when you double clear. i have more than once seen cloudiness on my job which is only noticeable when the light shines on it only to realize its sanding dust or slurry trapped between layers. now i always get a bunch of clean rags and wipe my sanded first layer of clear down with slow reducer. its really cleans things up and you can see when its clean.
Click to expand...

I am hoping it is not that.... I washed it with Dawn then wiped it down with 700 then 710 like Barry suggested.. I'll need to look better tomorrow... I had to come in and do some work for real work..... I am fairly sure the cloudiness is on the surface.
 
So you all know I am weak.... Hit it harder with the 1500 and then 2000 and rebuffed with wool and CSI.... MUCH better.... The flash shot you can see a little but of swirl at the end of the florecent light reflection but I bought the black polishing foam and V36 recommend here for that which I have not done yet.

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Last photo looks like more 2000g love needed. 3000g i did too.
The v36 & black pad won't get that out. It'll help for sure, but not like it will when u get them scratches out 1st :)
 
Before the next step, clean with wax and grease remover to get rid of the glaze, and I say this because you mentioned swirl marks.
Also, the glaze can fill scratches and hide scratches.
 
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