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Green Copper Corrosion - Chemistry

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Author Previous TopicReplies: 199 / Views: 35,952Next Topic
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Bedrock of the Community
BadThad's Avatar
United States
19963 Posts
 Posted 08/25/2008  6:44 pm  Show Profile   Bookmark this reply Add BadThad to your friends list Get a Link to this Reply
I decided to put my fluid to the ultimate test. How confident am I in VERDI-GONE™? How about using it on my personal EF-AU 1909S VDB Lincoln! I got this coin from my Grandfather. It was stored in an old Whitman folder for some 40 years.

Initial:

Green-Copper-Corrosion---Chemistry

Green-Copper-Corrosion---Chemistry

I used a 50% solution of VERDI-GONE™. After just 10 minutes, you can see it starting to work:

Green-Copper-Corrosion---Chemistry

A fresh install of 50% solution and 40 minutes total time:

Green-Copper-Corrosion---Chemistry
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Edited by BadThad
08/25/2008 6:57 pm
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jbuck's Avatar
United States
189075 Posts
Rest in Peace
biggfredd's Avatar
United States
9104 Posts
 Posted 08/26/2008  6:19 pm  Show Profile   Bookmark this reply Add biggfredd to your friends list Get a Link to this Reply
Guts and a bottle of Della Coin Darkener.
Bedrock of the Community
BadThad's Avatar
United States
19963 Posts
 Posted 08/26/2008  10:03 pm  Show Profile   Bookmark this reply Add BadThad to your friends list Get a Link to this Reply

Quote:
Guts and a bottle of Della Coin Darkener.


Excuse me? That was a pretty cheap shot to suggest.

1) I would never use such a product on any of my coins especially my 09S VDB.
2) I am an honest person. What you see is exactly what I did, no more, no less.
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KurtS's Avatar
United States
5318 Posts
 Posted 08/27/2008  3:55 pm  Show Profile   Bookmark this reply Add KurtS to your friends list Get a Link to this Reply
Gutsy, but an improvement, especially if it reduces the possibility of further damage.
I like the results. Just for fun, that looks like obverse die #1.
Valued Member
United States
201 Posts
 Posted 08/27/2008  4:39 pm  Show Profile   Bookmark this reply Add Steamwalker to your friends list Get a Link to this Reply
Time to get that coin slabbed, BadThad.
Bedrock of the Community
BadThad's Avatar
United States
19963 Posts
 Posted 08/27/2008  6:59 pm  Show Profile   Bookmark this reply Add BadThad to your friends list Get a Link to this Reply
Kurt - I couldn't stand looking at the verdigris any more! I used VERDI-GONE™ on enough Lincolns now to know I wouldn't damage the coin.....when used properly....note the minimal exposure. And yes, it's a #1....good eye!

Steamwalker - I've been thinking about that for a long time.
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xshift's Avatar
United States
2669 Posts
 Posted 08/27/2008  8:31 pm  Show Profile   Bookmark this reply Add xshift to your friends list Get a Link to this Reply
Nice, Thad!
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biggfredd's Avatar
United States
9104 Posts
 Posted 08/28/2008  02:00 am  Show Profile   Bookmark this reply Add biggfredd to your friends list Get a Link to this Reply

Quote:
Excuse me? That was a pretty cheap shot to suggest.

What, suggest that it took guts?


Quote:
1) I would never use such a product on any of my coins especially my 09S VDB.

I wouldn't know why not. I would think it would give it a more even color.

Look, you cleaned a coin. You even admitted it. I'm betting if it's sent to TPG, it will come back altered surfaces.

Now I don't have a problem with properly cleaned coins. Virtually 100% of ancients have been cleaned. It's just that it strikes me as odd that you find it acceptable to subject a coin to one kind of non-circulation chemical treatment in an attempt to improve its appearance, but bristle at the suggestion of a different kind of non-circulation chemical treatment in an attempt to improve its appearance.


Quote:
2) I am an honest person. What you see is exactly what I did, no more, no less.

At no point did I wish to imply anything dishonest. We have NCC doing the same thing, and how about shipwreck coins that have been subjected to all sorts of treatment. As long as they are only improving the appearance of what's left, and not doing stuff like engraving new detail,I don't have a problem with it. I don't even have a problem with damage repair like filled holes, and long as the coin is sold as having been repaired.
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BadThad's Avatar
United States
19963 Posts
 Posted 10/07/2008  1:23 pm  Show Profile   Bookmark this reply Add BadThad to your friends list Get a Link to this Reply
WOOOHOOOO! Just got word from my dealer today that my 1909S VDB went into an NGC holder! I'll post some pics when I get it back next week.

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jbuck's Avatar
United States
189075 Posts
 Posted 10/07/2008  1:26 pm  Show Profile   Bookmark this reply Add jbuck to your friends list Get a Link to this Reply
Wow! Congratulations!

Did he tell you what grade it received?
Edited by jbuck
10/07/2008 1:32 pm
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BadThad's Avatar
United States
19963 Posts
 Posted 10/07/2008  1:32 pm  Show Profile   Bookmark this reply Add BadThad to your friends list Get a Link to this Reply
He said he couldn't remember the grade exactly but he thought VF30, he submits a LOT of coins. The main thing he did recall was that it holdered....that's mostly what I cared about. It makes for solid validation that VERDI-GONE­™ is safe and effective when used properly.
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xshift's Avatar
United States
2669 Posts
 Posted 10/07/2008  11:35 pm  Show Profile   Bookmark this reply Add xshift to your friends list Get a Link to this Reply
Excellent news, Thad, congratulations! Let us know when you have it back in hand.
Pillar of the Community
United States
2600 Posts
 Posted 10/08/2008  09:41 am  Show Profile   Bookmark this reply Add Jim1953 to your friends list Get a Link to this Reply
Bad, have been off the site this summer so have not kept up with your efforts until now. I am amazed with your results. Are you going to sell Verdi-Gone? If so, how do I get some and what is the price?

Thx for a great effort, Jim
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biokemist6's Avatar
United States
12437 Posts
 Posted 10/08/2008  10:41 am  Show Profile   Bookmark this reply Add biokemist6 to your friends list Get a Link to this Reply
Jim1953,
Look in the B/S/T section, the sales have begun and he has one left
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