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 Replies: 22 / Views: 2,626 |
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Pillar of the Community
United States
1448 Posts |
I recently purchased an 1829 Capped Bust; apparently there is poly vinyl chloride on the coin. Would dunking it in acetone diminish the value of the coin? (ie would a TPG grade the coin "Cleaned") Also, after dunking it in acetone, would I have to further clean it off with water (distilled I am guessing?) to remove the remnants of the acetone? Lastly, is nail polish remover ok to use; or do I need to use pure acetone? Here is the coin: zBSJ432mR9g~~60_57.jpg)  Edited by Steelers72
09/12/2013 03:31 am
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Pillar of the Community
Australia
1874 Posts |
I believe that using acetone is ok and it will not harm the coin.
I dont think you need to further clean the acetone off with distilled water as acetone evaporates rather quickly.
Do not use nail polish remover as it has other chemicals in it which might harm the coin. only use Pure acetone
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Bedrock of the Community
United States
11951 Posts |
It does look like it could have some PVC on it. It shows as a light green tint. On the reverse look between the A and M in America and on the eagles right leg. Acetone will not hurt the coin. I buy mine at Walmart, in hardware section, or a local hardware store. Do not use nail polish remover. I use a small jar with a lid, sometimes I soak a coin for days, depending what's on it. There are many threads on this subject, just put acetone in the search box. |
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Pillar of the Community
 United States
1448 Posts |
Thanks for the tips! How long would you keep this coin in the acetone? Are we talking 30 seconds or overnight?
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Bedrock of the Community
United States
11951 Posts |
The acetone will not hurt the coin.
The PVC does not look to bad, I have seen it on some coins
where it is eating right into the coin.
I think I would start at 30 to 60 minutes, check it to see if it has
completly removed the PVC. You can alway put the coin back in.
I have put painted silver eagles in acetone for weeks, before the
paint comes off. After weeks the luster is still there.
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Bedrock of the Community
United States
19947 Posts |
Looks more like garden variety verdigris. Acetone will not harm the coin, see it helps. It will at least dehydrate the verdigris slowing its progress.
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Pillar of the Community
United States
1448 Posts |
Thanks for the help GR58! Is this a good type of pure acetone to use? http://www.walmart.com/ip/Onyx-Prof...-oz/11047134It says pure acetone but says nail polish remover? Does anyone, by any chance, have a link to the pure acetone that you use for your coins? I appreciate all of the help! |
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Pillar of the Community
United States
1448 Posts |
BadThad- if it is verdigris, what do you recommend I use to remove it? Is there a verdigris-removing solvent that will not harm the coin like acetone? My issue here is that one day I would like to send the coin to a TPG. It would kill me to have them grade it improperly cleaned by using a solvent (I know that acetone will not harm the coin now thanks to everyone's informational posts). Thanks again for any help. |
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Bedrock of the Community
United States
11951 Posts |
I have never sent a coin into a TPG after using acetone. So I could not tell you on that question. I am sure if you sent it in with PVC on the coin, that would cause a details on the slab. Here is the Walmart link. ( I use the first can, blue and orange) It is in home improvement, not beauty. http://www.walmart.com/search/searc...&_tt=acetone |
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Pillar of the Community
United States
5207 Posts |
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Pillar of the Community
United States
5207 Posts |
Quote:
It would kill me to have them grade it improperly cleaned by using a solvent I'd be more worried about the ding at 9 than acetone. Given the wear to the coin I think they would let the ding pass. |
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Pillar of the Community
United States
1448 Posts |
thanks for the link GR!
jack- thanks for the assurance about sending it in after acetone. I just bought some PVC-free mylar flips and I am going to dunk this in acetone when I get it. I'll let you all know how it goes.
Thanks again
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Pillar of the Community
United States
2335 Posts |
Let me point out the obvious for anyone that might have missed it. If it's PVC & you do nothing before you send it in to a TPG it will come back as a details grade. |
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Bedrock of the Community
United States
19947 Posts |
Quote:I have never sent a coin into a TPG after using acetone. And I have never sent a coin to a TPG that hasn't been rinsed in acetone first.  |
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Bedrock of the Community
United States
19947 Posts |
Quote:
BadThad- if it is verdigris, what do you recommend I use to remove it? Is there a verdigris-removing solvent that will not harm the coin like acetone?
See my signature.  Lincoln Cent Lover!VERDI-CARE™ INVENTOR https://verdi.care/
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Pillar of the Community
United States
9792 Posts |
Quote:And I have never sent a coin to a TPG that hasn't been rinsed in acetone first. Me too after getting a couple of PCGS submissions body bagged in the early days for PVC residue. That was a hard pill to swallow at $30+ per coin. Always use pure acetone never nail polish remover (It can have oils and fragrances in it not good for coins). You should be able to get acetone at any hardware store in a quart can for under $5.00 Acetone should never hurt a coin, you may need to let it soak for 24 hours or longer on really crusty dirty coins. On circulated coins I sometimes use a cotton swab lightly to help dislodge any residue that won't come off, never on an uncirculated coin though, don't want to leave any hairlines on a nice reflective surface! Your CBH looks like it may improve with a quick dip, it doesn't look like it will need a long soak. A minute or two probably will remove any PVC traces. Don't be to afraid to try, acetone is really not going to do anything other than remove surface contamination, it should never change the color or remove toning (unless the toning is artificial). On copper coins it can dry out the surface and that is why many EAC collectors will treat their old coppers with another substance after the acetone soak like "Blue Ribbon" (no longer in production and very hard to find today). Silver and gold should not have that issue. You do not need to rinse the coin after the acetone bath, it will evaporate by itself completely. Water, even distilled water can leave moisture on the surface, and that is bad, acetone will take water residue off as it evaporates. P.S. BadThad is the creator of Verdi-Care the best stuff next to acetone for coin preservation out there, I'd take his word over mine or anyone else's on preservation. He is a GOD in that field!  Besides being an all around good guy and helping out others here in the CCF forums, I've never met BadThad but hope to someday. "Buy the Book Before You Buy the Coin" - Aaron R. Feldman - "And read it" - Me 2013! ANA Life Member #3288 in good standing since 1981, ANS, Early American Coppers Member (EAC), Colonial Coin Collectors Club member (C4), Conder Token Collector Club member (CTCC), Civil War Token Society (CWTS) member, Liberty Seated Collectors Club (LSCC) & Numismatic Bibliomania Society member (NBS), USMex, Member in good standing, 2¢ variety collector. See my want page: http://goccf.com/t/140440Edited by westcoin
09/13/2013 9:03 pm
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Replies: 22 / Views: 2,626 |
Posted 09/12/2013 07:33 am
