Cloudy spots after buffing, need help removing

Setec Astronomy said:
What did you bring it to the detail shop for, because of this problem with the hood? And you can't go wrong getting an opinion from Rasky.
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Not for the problem specifically with the hood, It had quite a few swirl marks & paint scratches on the entire car from the previous owner that I wanted buffed out. They performed a 2 stage buffing on it which lead me to notice the hood problem after getting it back.
 
Paint defects are either,

Topical - This means on the surface.

Below surface - This means they penetrate "into" the top layer and possibly underlying layers of paint.
​

What I do and show others is what I call...

troubleshooting


How do you troubleshoot paint?

Simple. Place a tape-line down on an affected area and then only buff on one side of the tape line. It's important to be using top notch product for the troubleshooting in the first place, that is recognized brands known for having the best abrasive technology. I would also use a foam pad on probably a DA Polisher just to reduce the potential for surprise issues and to keep the testing as simple as possible.

Buff for a few moments on one side of the tape line and then stop buffing and wipe the residue off and inspect.

Assuming you're using a medium cut polish and a clean soft foam polishing pad on a DA polisher, for example these would all work,

Rupes Bigfoot 21 with yellow and yellow

Porter Cable with Pinnacle Advanced Swirl Remover and 5.5" LC White flat foam polishing pad.

Meguiar's MT300 with M205, (this is a fine cut polish but very capable), and a 5" yellow foam disc

Flex 3401 with Menzerna SIP 1500 with a white Hybrid foam polishing pad.
​

Any of the above would be very non-aggressive but at the same time polish and clean up the surface enough to tell you what's going on, as in,

A: The buffed side looks better, more clear, swirls are removed.

B: No difference, the defects do in fact appear to be under the clear.
​

I can't remember any thread on any forum ever in my life where there were VISIBLE swirl scratches, as in circular or cobweb type scratches UNDER the clear.

I've seen prep sanding marks under the clear from paint shrinking or die back but not actual "swirls".

I agree with others and to me it sounds like the detail shop or detailer is trying blame someone else.

Another thing you can do is simply ask them,

What did you use on my car?

  1. What tool?
  2. What pad?
  3. What products?
Tell you what... our forum members can tell you straight-up if the tools, pads and products are any good and if they are in fact to blame. Could be technique related but all results START with the abrasive technology as it is the abrasives that come into contact FIRST with the paint.

And another vote for Chad aka Rasky1 as being more than qualified to inspect your car's paint and tell you what's going on.


:dblthumb2:
 
Mncaddy said:
They performed a 2 stage buffing on it which lead me to notice the hood problem after getting it back.
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A "two-stage buffing" don't mean squat to a pro that knows what they are doing.

Here's a brand new black BMW I fixed for a customer last year. The paint was perfect till he took it to a BMW Dealership for a car wash which scratched up the paint.

Then the dealership let their "detailers" fix it. Really? :dunno:


2014 BMW 535i - Removing Dealership Holograms, Swirls and Scratches

Here you can see the damage inflicted to the paint at the dealership. Luckily it appears they only used a rotary buffer on the hood but their were still scratches in all the paint from being washed at the dealership.


watermark.php


watermark.php




Here's what a black BMW should look like....


watermark.php




:)
 
So I had Rasky1 take a look and confirmed that it is indeed under the clear coat. In order to fix it the hood will require a repaint.

Thanks everyone for your help on this, especially Rasky1 aka Chad who was very helpful in diagnosing the problem after looking at it in person.
 
Thanks for the update. Glad you got an answer but sucks that it was shoddy paint work.
 
Well, I'm surprised it wasn't the detailer, but if Rasky says it's the paint job, it's the paint job. Glad you got your answer. You gonna let Rasky finesse it after the repaint?
 
Mncaddy said:
So I had Rasky1 take a look and confirmed that it is indeed under the clear coat. In order to fix it the hood will require a repaint.
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Sorry to hear it was the paint, glad to hear it wasn't the detail shop.

Two things,

First, a good detailer by removing the defects will "clear" up the finish and this will tend to show defects in the paint that beforehand were not noticeable. That sounds like what happened here.

Second... just goes to show an experienced detailer like Chad is worth his weight in gold.


:dblthumb2:
 
Mike.Phillips@Autogeek said:
Sorry to hear it was the paint, glad to hear it wasn't the detail shop.

Two things,

First, a good detailer by removing the defects will "clear" up the finish and this will tend to show defects in the paint that beforehand were not noticeable. That sounds like what happened here.

Second... just goes to show an experienced detailer like Chad is worth his weight in gold.


:dblthumb2:
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Absolutely, this was my first post on the forum and I've already learned a ton. Thanks again!
 
Based on what I saw, I would say they did a blend or spot repair on the hood and in the sanding/prepping process they went through the clear in a few areas and didn't notice it, or didn't care, prior to re-clearing the whole panel. The greyish swipe marks were likely from the solvent wipe down prior to painting and it looks like a smudge of dust under the clear.

Nice car and awesome color though! Nice meeting you Dan. :xyxthumbs:
 
RaskyR1 said:
Based on what I saw, I would say they did a blend or spot repair on the hood and in the sanding/prepping process they went through the clear in a few areas and didn't notice it, or didn't care, prior to re-clearing the whole panel. The greyish swipe marks were likely from the solvent wipe down prior to painting and it looks like a smudge of dust under the clear.
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Thanks for closing that out, I knew once you were on the case you would get to the bottom of it!
 
One last question, I'll probably hold off re-painting the hood for awhile given these artifacts are not really noticeable unless under direct intense sun light or shinning a bright light directly on it. Are there any polishes/wax combos that are good for covering up these type of artifacts up?
 
Mncaddy said:
One last question, I'll probably hold off re-painting the hood for awhile given these artifacts are not really noticeable unless under direct intense sun light or shinning a bright light directly on it. Are there any polishes/wax combos that are good for covering up these type of artifacts up?
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Not likely. :(
 
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