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Replies: 44 / Views: 4,831 |
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Bedrock of the Community
United States
10038 Posts |
 I got mine at Walmart also, I also have gotten into the habit of putting my JFKs from roll searching into acetone before they go into the album/2X2s/or rolls. This way I am sure there is no organic stuff that may grow on them. While roll searching I am upgrading JFKs all the time and each one gets the treatment.
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Pillar of the Community
United States
1721 Posts |
SsuperDdave,
I never saw this restoration before. Great job.
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Moderator
 United States
23522 Posts |
A few minutes in acetone is a great idea for newly-bought silver as long as there are no considerations regarding removing inappropriate stuff. PVC infestation is not visible in initial stages.
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Valued Member
United States
252 Posts |
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Valued Member
Brazil
117 Posts |
Very good topic, it's helping me a lot. I am in a kind of "journey to coins conservation". Want to learn and learn. Thanks!
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Pillar of the Community
United States
3076 Posts |
AS SD has mentioned..ACETONE, is acetone, not nail polish remover........waist no time in other types a so called NAIL POLISH or any thing other than the same over the counter ACETONE, you can buy even at Walmart... It doesn't effect the silver coin. It's not the same as DIPPING the coin, which leaves chemical alterations, or changes in the surface of the coins... which leads to "CLEANED COINS GRADE".. Dipping.....usually strip's a layer of the original silver patina.. which can be seen by the spotting or discolouring, and a brownish tinge......when the silver surface is removed and the small percentage of copper bleeds through...
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Pillar of the Community
United States
9792 Posts |
Home Depot, Lowe's any hardware shop should have it ( Walmart is ripping you off) $3-5 for a quart of the stuff usually is what I find it for, I only go through a can every couple of years. Be sure you use this stuff away from any source of flame, and outside perferably, as it's quite dangerous and flamable. The fumes can knock you out too.
"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/140440
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Valued Member
United States
477 Posts |
As a noob, what is "verdigris"?
I use acetone a lot in the model airplane hobby, usually when epoxy or polyester resins are involved. The stuff evaporates very quickly so keep it in a closed container while soaking or you'll end up with an empty vessel with residue stuck to the coin, or whatever you're soaking.
Rick
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Bedrock of the Community
United States
20753 Posts |
Using Acetone on coins can not effect the metal. There are many things to consider using Acetone though. Mainly use clean glass containers for dipping your coins. In many instances people use a plastic that melts in Acetone. Not good idea. And remember that if you use your fingers to place the coin in the Acetone, STUFF from your fingers gets into the Acetone too and when the coin is removed, the Acetone that evaporates may leave STUFF on the coin. If you use any metal tongs, tweezers, etc to place the coin in the Acetone, make sure they too are clean. Primarily always remember that Acetone is highly flamable. Do not smoke, light candles, etc. in it's precense. By me Acetone sells at every Walmart, Kmart, Menards, Ace Hardware, etc. for about $4/quart. Prior to using Aceotne always test by placing a small amount on a open, clean glass dish. Allow to evaporate. If any residue at all, the Acetone is contaminated.
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Pillar of the Community
United States
784 Posts |
I too have been using it on all my coins before they go into the Dansco or tube for storage. Especially anything I get on ebay. There's no way to tell if they have been handled and I like the peace of mind of knowing I've got rid of any newer finger goo and such.
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Valued Member
United States
293 Posts |
RES: Here in the USA there are two types of nail polish remover. If it says for soft brittle nails avoid that one. It's the other kind you want cause then when you look on the contents label it should then say acetone.
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New Member
United States
18 Posts |
OK, so an acetone dip to remove PVC is not considered a classic "dip" or "cleaning" and will NOT affect gradability? I bought into the do not dip philosophy some years ago after ruining a XF Bust Half, and I have heard nothing but the gospel of No Dip since then from all dealers... until yesterday when I had a Trade dollar checked for gradability. Clean obverse, PVC in several spots on the reverse. The guys there recommended acetone. If the pros are doing it, I guess it's OK, so off to the hardware store I will go!
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Pillar of the Community
1751 Posts |
A proper dip won't affect gradability either. But to answer your question, distilled water, acetone, and xylene are all nonreactive with silver coins and shouldn't cause any issues. They may reveal issues, but certainly won't cause them.
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Moderator
 United States
23522 Posts |
Quote: OK, so an acetone dip to remove PVC is not considered a classic "dip" or "cleaning" and will NOT affect gradability? Correct. "Dipping" is generally understood as stripping the coin's surface with an acid such as thiourea. Acetone is an organic solvent which is physically incapable of reacting with silver; only organic substances attached to it. Acetone's usage has to be considered carefully, still. What it's capable of removing doesn't usually cover the surface of the coin evenly, and the result might be an obviously-cleaned coin because the surface under what the acetone removed will have aged more slowly than the rest. You therefore have to consider what a successful result will look like, before you decide to use it. But when PVC plasticizer contamination is in play, you've no choice. Whatever the acetone does will most definitely be the lesser of two evils, compared to leaving the PVC to do its' nasty work.
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Bedrock of the Community
United States
20753 Posts |
Quote: RES: Here in the USA there are two types of nail polish remover. If it says for soft brittle nails avoid that one. It's the other kind you want cause then when you look on the contents label it should then say acetone. I may be wrong but I've never seen fingernail polish remover that is pure Acetone. The reason is women use it to remove fingernail polish. Other ingrediants have been added for a decent odor, softeners, etc. Every bottle of fingernail polish I've ever seen contains way to much STUFF to consider using on coins.
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Replies: 44 / Views: 4,831 |