| Author |
 Replies: 44 / Views: 4,825 |
|
Valued Member
United States
285 Posts |
How exactly would you do a quick dip in acetone? is there a certain time limit you soak it for? I have a few coins that have crud on them. I know you should never clean a coin but they are not valuable and I intend to keep them in the fam. thanks!
|
|
|
|
Valued Member
United States
380 Posts |
The acetone will only remove the organic crud. It will not remove verdigris. You could soak it for about 30 min. That should loosen up anything that is going to come off.
|
|
Valued Member
 United States
285 Posts |
That's all I'm looking to do. Remove the organic stuff
|
|
Valued Member
United States
252 Posts |
I want to try out some acetone on a couple of my coins as well (modem halves from circulation). What can I use as I'm in the UK and nothing actually says acetone as the main of the label. My wife is saying acetone nail polish remover. What do I use?
|
|
Valued Member
United States
252 Posts |
I want to try out some acetone on a couple of my coins as well (modem halves from circulation). What can I use as I'm in the UK and nothing actually says acetone as the main of the label. My wife is saying acetone nail polish remover. What do I use?
|
|
Valued Member
United States
380 Posts |
You have to be careful with the nail polish remover. They put fragrances and other chems in them that could damage your coin.
|
|
Pillar of the Community
United States
745 Posts |
will acetone remove black line tarnish on newer .999 silver?
|
|
Pillar of the Community
Canada
4227 Posts |
You need pure acetone; nail polish remover has many other unwelcome ingredients. Acetone, in pure form, can usually be found in building supply stores, for example.
|
|
Pillar of the Community
United States
745 Posts |
will pure acetone remove black line tarnish on newer .999 silver?
|
|
Valued Member
United States
380 Posts |
No acetone will not remove tarnish.
|
|
Moderator
 United States
23522 Posts |
From a purely chemical standpoint, you can leave a coin in acetone for as long as you wish. Every coin I use acetone on does, as part of the procedure, at least one overnight. But not the first application, though - whatever the acetone removes, it holds in solution and if too much crud is left dissolved it can redeposit on the coin. So your initial soak is (depending on how serious the problem is) only an hour or so, followed by an immediate rinse in fresh acetone to remove any redeposits, and then a second soak. Once I can no longer see any of what caused me to want to soak the coin, then it spends an overnight. Case in point:    That one took 3 days of steady work, including two overnights, and was out of the soaks for maybe an hour total over that three days. |
|
Pillar of the Community
United States
2480 Posts |
SsuperDdave, was the green stuff PVC residue? It looks more like verdigris but acetone doesn't have an effect on verdigris, right?
|
|
Pillar of the Community
United States
1511 Posts |
Another question? Is it ok for copper? Someone said it messes with the patina?
|
|
Moderator
United States
23522 Posts |
Quote:
SsuperDdave, was the green stuff PVC residue? It looks more like verdigris but acetone doesn't have an effect on verdigris, right? Yes, that was a particularly nasty PVC issue. I documented the case here: https://goccf.com/t/105744Note, I achieved the visible results posted above in a few hours. You'll note my last post in that thread was open-ended, two days later, and I still wasn't done. Quote:
Another question? Is it ok for copper? Someone said it messes with the patina? There's evidence to support the idea that acetone can react with copper in the presence of sunlight. I've heard a couple stories here of noted effects on a copper coin. I've also heard many success stories. So, we call this a qualified "maybe," and unless you're absolutely sure you're looking at PVC infestation, go the Verdi-Care route. |
|
Pillar of the Community
United States
1511 Posts |
|
|
Valued Member
United States
359 Posts |
I picked up a bottle of the Onyx 100% acetone nail polish remover at Walmart. It was like $2.50 for 16 oZ, which is roughly the same cost per ounce of buying a big can of it at a home improvement store (at least in my area). |
| |
Replies: 44 / Views: 4,825 |
Posted 02/02/2013 11:49 am
