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      12-29-2019, 04:24 PM   #1
dparm
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Random orbital on ceramic coated paint?

So I found my old Porter-Cable 7424XP in a box the other day and am trying to understand if I can even use it on my car given that it has an Xpel clear bra on some panels, and Cquartz on all of the panels. The Cquartz is only about 2 years old and should be in good shape.

I've seen conflicting info that says anything you do to the ceramic coating, especially with a machine, will remove most of it and you'll have to re-coat the panel. But this kinda sounds like something detailers will claim in order to keep you coming back to them. Redoing the coating won't be too hard the second time since the surface was already prepped for the original application, but I'm trying to figure out if I really have to take the car back to my detailer for him to fix stuff and re-apply the Cquartz. He's an hour away and leaving the car with him is kinda tricky.

The car has picked up a few scratches and blemishes from normal use and I'd like to remove them myself, if possible.

Are there any products or procedures that would be considered "ceramic coating safe" with a random orbital? If so, what are they and are there any special pads I need to use
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Last edited by dparm; 12-29-2019 at 04:41 PM..
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      12-29-2019, 04:51 PM   #2
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Assuming the scratches are on the clearcoat under the coating, then the polishing would have to remove the ceramic coating. If they are light enough to potentially be on the coating, which I don't know if that is possible, then maybe it's easier to apply a nice wax or sealant to the ceramic and maybe it will slightly hide the light scratches. But my guess would be the ceramic coating would be toast with any sort of machining.
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      12-29-2019, 04:52 PM   #3
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Quote:
Originally Posted by wfdeacon88 View Post
Assuming the scratches are on the clearcoat under the coating, then the polishing would have to remove the ceramic coating. If they are light enough to potentially be on the coating, which I don't know if that is possible, then maybe it's easier to apply a nice wax or sealant to the ceramic and maybe it will slightly hide the light scratches. But my guess would be the ceramic coating would be toast with any sort of machining.
This is pretty much the conclusion I reached, and why I'm not sure I'd do ceramic coating ever again.
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      12-29-2019, 05:00 PM   #4
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Quote:
Originally Posted by dparm View Post
Quote:
Originally Posted by wfdeacon88 View Post
Assuming the scratches are on the clearcoat under the coating, then the polishing would have to remove the ceramic coating. If they are light enough to potentially be on the coating, which I don't know if that is possible, then maybe it's easier to apply a nice wax or sealant to the ceramic and maybe it will slightly hide the light scratches. But my guess would be the ceramic coating would be toast with any sort of machining.
This is pretty much the conclusion I reached, and why I'm not sure I'd do ceramic coating ever again.
Yeah as much as I'd enjoy the benefits of easier washes, etc... it would be restrictive on other aspects. I think if I ever get a coating I'll be applying myself so the $ investment is small.
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      12-29-2019, 05:31 PM   #5
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Quote:
Originally Posted by wfdeacon88 View Post
Yeah as much as I'd enjoy the benefits of easier washes, etc... it would be restrictive on other aspects. I think if I ever get a coating I'll be applying myself so the $ investment is small.
The coating itself isn't that expensive, it's the labor-intensive prep work that really jacks up the price.
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      12-31-2019, 08:39 AM   #6
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Hey Dan - I've too forgone the coating except on wheels (and I've applied the wheel coating to my headlight lenses) for the reason that I enjoy detailing my car with the fresh wax look.

Here's a solution: sell the vette and get back into an M3 without ceramic coating?
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      12-31-2019, 11:08 PM   #7
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Quote:
Originally Posted by dparm View Post
This is pretty much the conclusion I reached, and why I'm not sure I'd do ceramic coating ever again.
I’m not sure your cquartz is still good much after 2 years. It’s not a forever coating. Mine lasted 2 years on my old M3 but it was garaged day and night. Only saw the sun while driving to/from work or the track.

You’re gonna take ceramic coating off when you polish.
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      12-31-2019, 11:14 PM   #8
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i'm an ameature detailer at best, but i do follow a few youtubers and the basic idea of polishing is taking a micro layer off of the clear coat. so i maybe use a polishing wheel and see if it gets rid of imperfections on top of the ceramic coat? a cutting wheel would probably get rid of the ceramic coat...
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      01-04-2020, 12:34 AM   #9
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I talked to my detailer in person today, and he confirmed that yes, anything mechanical (like a DA) will remove the coating. Re-applying shouldn't be too tough since you know the surface underneath was properly prepped and has stayed largely untouched since then.
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      01-07-2020, 08:47 PM   #10
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carpro essence plus with the carpro white gloss pad on your polisher will do the trick. You will actually refresh the coating during this process and remove some of the defects you are seeing.
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      01-07-2020, 08:54 PM   #11
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Quote:
Originally Posted by Camnyc View Post
carpro essence plus with the carpro white gloss pad on your polisher will do the trick. You will actually refresh the coating during this process and remove some of the defects you are seeing.
and it preps the surface for another layer of ceramic
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      01-08-2020, 10:29 AM   #12
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Quote:
Originally Posted by admranger View Post
Iím not sure your cquartz is still good much after 2 years. Itís not a forever coating. Mine lasted 2 years on my old M3 but it was garaged day and night. Only saw the sun while driving to/from work or the track.

Youíre gonna take ceramic coating off when you polish.

My experience is the same with cquartz UK 2.0 on my wife's car. It's help up pretty well on the upper half of the car but after 2 years it's non-existent on the lower half of the car. These aren't miracle products.

I'm still unsure if I'm going to coat this car again or just go back to a traditional sealant. I liked cquartz but I won't use it again over Gtechniq CSL which I used on my previous S2000. Much easier application and will last the same or longer.


Also, to answer the OP's original question, polishing the coating absolutely will degrade or remove it. No questions about that.
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      01-08-2020, 02:30 PM   #13
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I would doubt there is much of any coating left on the car after 2 years. I would go back through another full prep before re-coating.
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      01-08-2020, 10:30 PM   #14
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Quote:
Originally Posted by SFCM3 View Post
and it preps the surface for another layer of ceramic
Jury is still out on that. the essence plus was made for coated finishes, its a light cleaner w/o abrasives. It does contain sio2 and some other solvents, It will actually "Correct" some defects in the coating w/o removing the coating. In theory you could do an IPA wipe after and layer another coat of ceramic.

I used it on my f80 two years after initial coating, it did a bang up job of correcting and refreshing, I topped it with reload and got another full year out of the coating before selling the car.

Try it out, couldn't hurt.
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