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Safe rubbing compound for nitro-cellulose?

dnabbet2

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May 31, 2017
Messages
78
I'd like to try to buff out a small scratch in my LP's nitro-cellulose finish, but the only product I find locally is Carpex automobile rubbing compound containing:

Tripoli (Crystalline Silica) 1317-95-9
Ammonium hydroxide 1336-21-6
Hydrotreated Light Petroleum Distillates 64742-47-8

I tried a little on the inside of the control cavity and it doesn't seem to have done any damage. Can anyone tell from the ingredients whether it's okay?

Many thanks in advance for any advice.
 

MikeSlub

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Unbound Dot Neck

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Jun 14, 2004
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Look at Novus # 2 , cleans the gunk off easily
It may help on small scrathes
New guitar look and smells like vanilla body wash
lol
 

El Gringo

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Apr 8, 2015
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I've used this with success on nitro finishes:

That's very good stuff as I just read the product info from the link and I will have to get this to have at home . Thanks Mike !
 

dnabbet2

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May 31, 2017
Messages
78
That's very good stuff as I just read the product info from the link and I will have to get this to have at home . Thanks Mike !
I can't get everything here that you can in North America and Europe. In particular I don't see 3M products available by local mail-order, but I do see Meguiars BRAND though not the actual product you mention.

I CAN get Meguiars Ultimate sent to my door though: https://www.autogeek.net/meguiars-ultimate-compound.html. Do we think that's close enough? I can try another inconspicuous area under a tuning key or something to be sure it does no harm.
 

El Gringo

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Apr 8, 2015
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I can't get everything here that you can in North America and Europe. In particular I don't see 3M products available by local mail-order, but I do see Meguiars BRAND though not the actual product you mention.

I CAN get Meguiars Ultimate sent to my door though: https://www.autogeek.net/meguiars-ultimate-compound.html. Do we think that's close enough? I can try another inconspicuous area under a tuning key or something to be sure it does no harm.
Looks good to me and follow my advice with a little size dab on a soft cloth and rub in small circles and that should remove the mark . Please let us know how you make out and best wishes !
 

Iguana

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Aug 22, 2018
Messages
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I’ve used Meguiars Ultimate on a bunch of stuff but never on my Les Paul. It’s a diminishing grit compound so the abrasive gets finer as you work it. Use a pea sized drop on a microfiber cloth. I’m not sure how thick the lacquer is on a Gibson but the clear coat on a car is pretty thin. Typically 1.5 to 2 mils thick. I would be more concerned that a chemical reaction might cause discoloration than I would be about the abrasive being too aggressive.
 

dnabbet2

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May 31, 2017
Messages
78
I’ve used Meguiars Ultimate on a bunch of stuff but never on my Les Paul. It’s a diminishing grit compound so the abrasive gets finer as you work it. Use a pea sized drop on a microfiber cloth. I’m not sure how thick the lacquer is on a Gibson but the clear coat on a car is pretty thin. Typically 1.5 to 2 mils thick. I would be more concerned that a chemical reaction might cause discoloration than I would be about the abrasive being too aggressive.
Yes, I've used diminishing grit compound -- 3M, I think -- when I was using actual auto paint on Stratocaster-type bodies. But in those cases I knew how thick my finish was. Also, a fake Strat body isn't as valuable and special as a real Les Paul.

The current subject is a Custom. The black, I imagine would be okay, but I can try applying a dab on the binding of the back of the body at the end pin and waiting to see if it discolours. It might not be worth it all if I'm going to cause more damage than I buff out.
 

renderit

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Jan 19, 2009
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I use the old style one grit PPG Ditzler polishing and finishing compounds for car finishes.

The stuff that breaks down to finer is great if you have loads of finish to work with but on guitars without much finish if you are starting with a coarser grit it will not give you the best shine. At least before hitting wood...

If the marks are very fine I would only use those grades called "Final Finish".

And a very light touch.
 

dnabbet2

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May 31, 2017
Messages
78
Final finish. Okay. I'll check and see if I can get some of that delivered -- I do see "swirl remover".

When I did the Strat bodies, I did know there to be a good depth of paint to work with but that's not the case on the LP.
 

renderit

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9,893
I would suggest pulling out an old Yellow Pages and look for a Auto Paint store.

Every town of any size has at least one.

As they used to use Nitro on cars back through the 70's most of it is compatible.

Nothing called "rubbing" should be used.

Polishing and final finish grits are where it's at.

Check in an unobtrusive spot of the fiddle to be safe. But it probably will be.
 
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