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Bedrock of the Community
13014 Posts |
Be careful with acetone it can change the color of copper according to a professional conservationist.
Definitely get new tubes though they're cheap enough to not risk it
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Bedrock of the Community
United States
74592 Posts |
I do Acetone soaks all of the time. I only do soaks for 4 hours though. Just don't leave them in Acetone too long.
Errers and Varietys.
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Bedrock of the Community
United States
20753 Posts |
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Be careful with acetone it can change the color of copper according to a professional conservationist. Do you have the name of that so called professional? I've been using Acetone on Copper coins for well over 60 years now. Never had the color of the coins changed. I would like to know who this so called professional is. Quote:
Put the coins in a jar of virgin olive oil for a time. Agitate and check periodically. And another bad idea. First of all not all so called olive oils are the same. Next most contain a mild Acid which is not good for coins. Please remember. Saying Olive Oil is like saying soap. Lots of different kinds. Edited by just carl
07/03/2018 11:55 pm
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Pillar of the Community
United States
3402 Posts |
I have never had any problems with the olive oil method. I wasn't aware that acetone could take off verdigris. I was under the impression that it takes off the plasticized gunk that remains on coins from cheap holders. EAC collectors have been using olive oil for years with great success. I will pick up some acetone and give it a shot.
KK
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Rest in Peace
United States
18456 Posts |
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I wasn't aware that acetone could take off verdigris I said acetone followed by Verdi-Care , a product made by CCF member Bad Thad available on e-Bay .  |
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Pillar of the Community
 United States
744 Posts |
Thanks everyone for the advice. I keep forgetting the bag I put all the cents in to take pictures, but it sounds like I need to soak them in acetone. I'll pick some up soon, and get more tubes. I did some research on verdigris, and that's exactly what is on the coins.
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Moderator
 United States
189120 Posts |
Quote:Quote:
Be careful with acetone it can change the color of copper according to a professional conservationist. Do you have the name of that so called professional? I've been using Acetone on Copper coins for well over 60 years now. Never had the color of the coins changed. I would like to know who this so called professional is. I believe it is only an issue for RED copper and even then under specific circumstances involving exposure to direct sunlight. It has been discussed before, I will see if I can find it. |
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Moderator
United States
189120 Posts |
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Pillar of the Community
United States
744 Posts |
Thanks JBuck. I will try acetone. I finally got around to taking a picture of a few of the cents. You can see the green spots I was talking about.  |
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Pillar of the Community
United States
744 Posts |
Another question, Is a clean mason jar an adequate vessel to treat the coins, and how many can I do at one time?
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Moderator
United States
189120 Posts |
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Thanks JBuck. I will try acetone. I finally got around to taking a picture of a few of the cents. You can see the green spots I was talking about. Acetone will probably not do anything for those spots, but you have nothing to lose for trying. I think Verdi-care will do a much better job. Quote:
Another question, Is a clean mason jar an adequate vessel to treat the coins, and how many can I do at one time? Yes. Just rinse it out with acetone first to make sure it is clean. Let them soak for a bit then drain off the used acetone. Follow-up with a rinse in fresh acetone. Do not rinse with water; this is an unnecessary step since acetone will evaporate rather quickly. The reason to use fresh acetone for a final rinse it to make sure nothing dissolved into soaking acetone remains on the coin when it evaporates. |
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Pillar of the Community
United States
3402 Posts |
Why don't you do a test and try half of the problem coins in acetone and half in virgin olive oil. You can put a bunch of the cents in the olive oil, periodic agitation is suggested. If you do this, let us know of the results. Why pay for a product when you probably have it in your wife's kitchen cabinet.
KK
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Bedrock of the Community
13014 Posts |
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I believe it is only an issue for RED copper and even then under specific circumstances involving exposure to direct sunlight. It has been discussed before, I will see if I can find it. Yes something along those lines. It's not that it will happen but it can and has happened before. It certainly doesn't mean to never use it, just that it's not 100 percent without risks like it is often presented as |
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Bedrock of the Community
United States
94367 Posts |
Based on the pics, I feel strongly that only Verdi-care will help, and even then there will be discolored areas left behind. Just not worth the effort or cost with common dates, except perhaps to experiment.
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Pillar of the Community
7234 Posts |
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I feel strongly that only Verdi-Care will help, I wouldn't go "all in" on that either. I've used Verdi-care every way people have instructed and I ain't impressed. Maybe it will stop verdigras from spreading but it sure don't get it gone! More of a coin preserver than a fixer. |
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Replies: 21 / Views: 2,739 |
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Posted 07/03/2018 9:35 pm
