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 Replies: 21 / Views: 10,493 |
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Valued Member
Canada
311 Posts |
Food for thought, engine oil is used to keep two metals from rubbing together or scratching each other, so therefore if a person was to use olive oil, and that would mean keeping the coin in olive oil continually while trying to clean it, would it be possible to clean a coin and not mark it in any way. I suggest that you try this method on a coin of no value and see if it does any damage to it. I would be interested in the outcome if you try this. take care.
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Valued Member
Mexico
53 Posts |
You should all check out Bad Thad's posts in this forum about VerdiCare and VerdiGone, two products he commercializes through WizardCoin I think, if you are going to clean coins. On a second note, should you or should you not clean coins? They are your coins do with them what you like.  Quote:
they are the dirtiest coins I have ever searched! In this condition unless it is a megarare coin it is worthless, so what are the ethics? If you sell them or pass them on, say and state it clearly, they are cleaned. In your case it is probably a better term to say "conserved" potato potatoe. The first step in the conservation of the aforementioned coins is correct, distilled water, room temperature and a little soap, change water every other day and gently brush the coins, a soft brush, not a tooth brush! In regards to using olive oil-motor oil-mineral oil it is a loooong process, do not expect quick results, I insist look for Bad Thad posts. |
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Valued Member
 Canada
426 Posts |
It is a fairly rare coin.
I'm not sure if BadThad's product can help as verdigris is not the problem.
The problem is a sticky substance with dirt caked on it.
The coin will be sent for grading once it's been cleaned
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Pillar of the Community
Canada
899 Posts |
Put a coin in a cup, add white vinegar just enough to cover the coin, sprinkle 4 - 5 piches of table salt, swiss around and the coin will be cleaned.
Some of the blacker spots may remain but will be a lot lighter in color. Most pennies will be brought back to their copper appearance..
Always try a penny that has no large value first to experiment with...Good Luck...
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Valued Member
Mexico
53 Posts |
Quote:
The coin will be sent for grading once it's been cleaned Then let them do the conservation, I have read in NGC site that for a price they will do the conservation if it is possible... |
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Valued Member
Canada
426 Posts |
I'm not a fan of the vinegar approach as it can eat the enamel of the coins.
The bright red copper colour is present so that is not what I'm trying to restore. I need to remove the sticky substance from the coin
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Valued Member
Canada
276 Posts |
googone? I don't know how abrasive or caustic it is, and what it'll do to the finish, but it always seemed to me to be quite harmless to everything except bubblegum.
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Bedrock of the Community
United States
12437 Posts |
GooGone works as a decent goo remover for someone not wanting to mess around with pure organic solvents.
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Valued Member
Canada
250 Posts |
If the substance is organic, you could try freezing the coin then carefully removing the offensive gunk. Never tried this, just throwing it out there.
good luck
$0.02 Worth
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Bedrock of the Community
United States
10045 Posts |
Quote:
I'm not a fan of the vinegar approach as it can eat the enamel of the coins.  Acetic acid (vinegar) will react with copper to form copper acetate, which is a form of verdigris. This actually would promote corrosion. |
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Pillar of the Community
Canada
1161 Posts |
Have you tried to lick the sticky stuff off? Just pop it in your mouth and imagine that it is a life savor.  Just kidding. I have used a small amount of Googone on a few coins. It easily removed the gunk from the coin with no adverse effects. Just be sure to clean it after with some distilled water and a mild soap. Googone is mild and non corrosive. Should do the trick for you. You can use a rose thorn or softened toothpick to work around...  ...having a brain fart and lost the word I'm looking for. To work around the letters/date or whatever other nooks and crannies you need to get at. |
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Valued Member
India
265 Posts |
i use only soap water to clean coins. I use tooth pick to clean the dirt.
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Pillar of the Community
United States
1757 Posts |
I reformulated the original Coin Care product for safe copper cleaning.
John Lorenzo
United States
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Valued Member
Canada
496 Posts |
John, what Will it clean off Copper ?
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Pillar of the Community
United States
1511 Posts |
For what you described on the coin, acetone should do the trick..... And is 100% harmless to the coin... That would be my absolute first try then move up to other things if need be, but definitely not vinegar nor scratching it. Me personally.... I'd try acetone and if not I'd send it in as is and pay for them to do a conservation.
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Posted 09/27/2010 09:58 am
