Clear Coat Sanded Through by Bodyshop!

[SHYNEMAN123]

Re: Clear Coat Sanded Through by Bodyshop!

Just a follow up. I agree with Mike as far as skill level needed for the undertaking I posted. From his post it sounded likehe has the exp.

I also e-mailed a friend of mine he is retired from SIKKINS after 30 + years and here is his reply.

Frank is on track with polishing-- but I am a whole lot lazier. I just DA dry with1500 ( if you want you can put a interface pad in there as well) polish with 3m compound the new stuff that smells good using a white foam pad probably 2 times then 3M ultra fina glaze (the blue 3m italian stuff)( while you are at it pour a glass of nice SuperTuscan wine- sangoviase, cabernet and merlot blend) and blue foam pad all at 2000 revs or lower. like I said I'm lazy. fresh clear is easier to polish than older.
The real question is the loss of DOI Depth of image it sounds like the clear pinched up as a result of something
could be too coarse sanding before basecoat or maybe the primer if some was used caused the pinching. the base may have too many coats as some colors dont hide well and take a lot of film build to cover even with force flash- the tip off is the fender that was blended into- it was glossy --very little if any basecoat on it for blend and certantly no primer and as some would say wala (oops! "voila") higher gloss.
you can also get anal and wet feet if you want to sand wet with 3000. then polish
reminds me of that old joke about the difference between a polish guy and a shine
regards

Bart

[the_invisible]

Re: Clear Coat Sanded Through by Bodyshop!

Thanks Shyneman for the clarification... and Mike Stoops for the warning!


Just wetsanded the hood.

I started with 2500 grit because I thought orange peel is not a concern. however, I realized that 2500 was too weak. There were actually deeper orange peel that I couldn't catch with my own eyes. I should have used 2000 grit, but as it stands right now 2500 grit seems to have done the job well. I also used a flexible sanding block. I should have went with the unigrit paper, but I was too impatient and went with the 3M wetordry.

I used a LC 5.5" orange pad and M105 to remove the sanding marks. I then gave it a couple pass using LC 5.5" white pad with swirlX. I am still having some marring and swirls that I cannot remove.

Wetsanding with 2500 has definitely improved the gloss and depth of the new paint significantly. It is hard to tell in the picture, but it is noticeable. 2000 would have done a better job, but I really thought 2500 was enough from my eye-assessment. I guess I was wrong.



Here are some pictures:
I did the left side already... sanding marks didn't look like much, but I sanded the entire hood, with noticeable defects given more pressure for correction.


polished 1/4 of the hood:


GLOSS after M105:









I am very tired now.

What do you guys suggest I use to remove the marring and fine swirls? I tried both ScratchX 2.0 and SwirlX with no effect. Should I try M105 using a polishing pad? Or perhaps SwirlX with a orange cutting pad?

maybe give it a third pass using M105 and an orange pad?

[the_invisible]

Re: Clear Coat Sanded Through by Bodyshop!

Update:
Before I started cleaning my foam pads, I decided to give M105 one more pass using the orange 5.5" LC cutting pad. the marring is now gone.

Now, I still see some fine scratch marks associated with NON-UNIFORM sandpapers. They are not hard to remove and are fairly light on the clear coat.

I have decided to use Ultimate Compound to remove those isolated sanding scratches. What is the best pad to use?

[Michael Stoops]

Re: Clear Coat Sanded Through by Bodyshop!

Obviously our pad of choice would be the Meguiar's W8207 polishing pad, but you seem to be a fan of the LC pads. If memory serves their orange pad is just a touch more aggressive than our W8207 but their white pad is a bit less so. If the marring is very light start with the white pad - and take advantage of the fact that Ultimate Compound has a crazy long buffing cycle.

[Michael Stoops]

Re: Clear Coat Sanded Through by Bodyshop!

I also e-mailed a friend of mine he is retired from SIKKINS after 30 + years and here is his reply.

Your friend Bart sounds like a real character - the kind of guy you hang around the garage with for hours swapping paint polishing stories.

Yes, those really do exist!!

[SHYNEMAN123]

Re: Clear Coat Sanded Through by Bodyshop!

Your friend Bart sounds like a real character - the kind of guy you hang around the garage with for hours swapping paint polishing stories.

Yes, those really do exist!!

Yes he is a character but with a wealth of paint knowledge 2nd to none I have met in my 28 years in the business and a Expert in older paint systems as well as current.