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How To Remove The Green "Gunk" From Pennies

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North of 49's Avatar
Canada
617 Posts
 Posted 12/08/2017  8:29 pm Show Profile   Bookmark this topic Add North of 49 to your friends list Get a Link to this Message Number of Subscribers
Does anyone know how to remove the green "gunk" from pennies?
Thanks
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kanga's Avatar
United States
5825 Posts
 Posted 12/08/2017  8:40 pm  Show Profile   Bookmark this reply Add kanga to your friends list Get a Link to this Reply
If it's "gunk" it's probably the result of PVC contamination.
An acetone bath should take care of that.

If it's crusty it's probably verdigris.
That's a bit more difficult to deal with.
I believe ver-d-care (sp?) will handle that.

In both cases damage has at least started.
The sooner you take care of it the better off your coins will be.
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Crazyb0's Avatar
10197 Posts
 Posted 12/08/2017  8:43 pm  Show Profile   Bookmark this reply Add Crazyb0 to your friends list Get a Link to this Reply
How-To-Remove-The-Green-

That which thou doest, do quickly...
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Canada
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 Posted 12/08/2017  9:04 pm  Show Profile   Bookmark this reply Add canadian-varieties to your friends list Get a Link to this Reply
Goo-Gone!

Edited by canadian-varieties
12/08/2017 9:04 pm
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DEVLEC's Avatar
Canada
3234 Posts
 Posted 12/08/2017  9:52 pm  Show Profile   Bookmark this reply Add DEVLEC to your friends list Get a Link to this Reply


There is green ,..and there is other green..Not all greens are created equal..
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Optimist-numismatist's Avatar
Canada
683 Posts
 Posted 12/08/2017  11:05 pm  Show Profile   Bookmark this reply Add Optimist-numismatist to your friends list Get a Link to this Reply
Acetone, probably best to avoid goo-gone in my opinion.
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spru's Avatar
United States
12477 Posts
 Posted 12/08/2017  11:17 pm  Show Profile   Check spru's eBay Listings Bookmark this reply Add spru to your friends list Get a Link to this Reply
Personally, I would start with pure acetone. That will take care of PVC residue if that's what it is. If it is verdigris, then I would use Verdi-Care on it. It won't remove the damage done but, it will halt the corrosion process.
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Canada
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 Posted 12/09/2017  12:24 am  Show Profile   Bookmark this reply Add canadian-varieties to your friends list Get a Link to this Reply
try acetone, goo-gone and let us know how it went...

but be careful, there are a lot of loud-mouth and extremely rude people on here who like to move in packs like a mob, and who may attack you if you say the wrong thing...

a self-appointed thought police if you will...dont let them silence you.
Edited by canadian-varieties
12/09/2017 12:27 am
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Pacificoin's Avatar
Canada
5394 Posts
 Posted 12/09/2017  01:08 am  Show Profile   Check Pacificoin's eBay Listings Bookmark this reply Add Pacificoin to your friends list Get a Link to this Reply
If the gunk is a soft pliable Green you should be able to remove it quite easily.
Many ways to remove it safely. Acetone is one of them, lots of others work as well.
No comment on Goo Gone , Verdicare or other materials save to say they work in some cases.
In the old days the real Blue Ribbon with trichlorethane 1-1-1 was awesome, worked exceptionally well.
Now it is as rare as hens teeth due to the banning of Trichlorethane as harmful to the ozone.
The hard Green stuff is virtually impossible as the verdigris has eaten in to the coin .
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John1's Avatar
United States
56855 Posts
 Posted 12/09/2017  04:20 am  Show Profile   Bookmark this reply Add John1 to your friends list Get a Link to this Reply
IF you try Goo Gone do it on a junk coin first. Goo Gone is not pure acetone,it has other stuff in it. Also post before and after pics please.
John1
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Optimist-numismatist's Avatar
Canada
683 Posts
 Posted 12/09/2017  04:53 am  Show Profile   Bookmark this reply Add Optimist-numismatist to your friends list Get a Link to this Reply

Quote:
.
but be careful, there are a lot of loud-mouth and extremely rude people on here who like to move in packs like a mob, and who may attack you if you say the wrong thing...

a self-appointed thought police if you will...dont let them silence you.


What are you on about this time?! This person asked what we think would best be used to remove "green gunk" (most likely PVC residue or corrosion) and we told the op what we thought. People having different opinions on works than yours is not being a "thought police" because, believe or not, other numismatists have differing opinions, shock I know...

Oh and way to paint a nice picture of the forum, making it look like a forum full of jerks and bullies. It really goes to show how much you think of this forum and its members, just because some people have the au-DACITY... To have a differing opinion than your own.
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5585 Posts
 Posted 12/09/2017  05:41 am  Show Profile   Bookmark this reply Add okiecoiner to your friends list Get a Link to this Reply
As others have stated .. if it's the soft, oily green stuff, it's PVC contamination and easily removed with acetone (try to get 100% proof from hardware store, not nail polish remover). You may see a little discoloration once it's off depending on how long it's been there. If it's hard and crusty, acetone won't remove it all, so do as suggested above with verdi-care. Under the hard/crusty stuff, it will have already started to eat the metal and you most probably will have discoloration and pitting. I'd advise you to stay away from goo-gone.
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Canada
243 Posts
 Posted 12/09/2017  3:28 pm  Show Profile   Bookmark this reply Add Tee to your friends list Get a Link to this Reply
Hey guys and gals

Along the same line of questioning, I rediscovered some nickels that I had put away (1940 - 1953) and found there was rust spots on some of them. Would vertical-care help remove that? Acetone didn't seem to remove anything from the coins I used it on.
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United States
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 Posted 12/09/2017  3:43 pm  Show Profile   Bookmark this reply Add otto to your friends list Get a Link to this Reply

Quote:
try to get 100% proof [acetone] from hardware store, not nail polish remover


Not too long ago I checked out the varieties of nail polish removers at a Dollar General. They actually did have a "professional strength" that is pure acetone. It's container was smaller and easier to pour than the paint store's container that I have since bought. And the unit price was no higher -- probably a bit lower.
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Coinfrog's Avatar
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94367 Posts
 Posted 12/09/2017  5:48 pm  Show Profile   Bookmark this reply Add Coinfrog to your friends list Get a Link to this Reply
Strongly recommend Verdi-Care.
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North of 49's Avatar
Canada
617 Posts
 Posted 12/09/2017  6:25 pm  Show Profile   Bookmark this reply Add North of 49 to your friends list Get a Link to this Reply
Thank you very much to all for your helpful responses. I should have been more clear about the problem. These pennies were stored in a low grade plastic holder that I bought on the cheap. When I first started organizing coins I stared with pennies and I started cheap, I stored them in a cupboard in my basement. So the issue is a combination on damp and poor plastic. As for the green gunk it can be wiped off with a paper towel and so from you comments I'm guessing it is PVC residue.
I will pick up some acetone and give that a try later on this week. I will post some before and after pics.
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