My cleaning method.

spy88

As coppercoins did some testing for a product that will remove haze as well as other surface from coins, proof or otherwise, I too think I've got the answer. But I think the product I use is better then Goo Gone as there aren't any reactive chemicals you need to quickly remove to keep from further damaging the coin. I'll give the product name at the end of this post.

First pic is of a circ penny with just the left half done.


Here is a circ half---same left side done.


Another circ half.


And a silver Jefferson.


I also had a 2001 proof set with a hazed half. Here is a before and after.


And the hazy Jefferson obverse from the same set.


Here is the reverse.



Some of you may think that there are two different coins for each pic, but I assure you, I would not put up this thread to try to fool anyone! The before and after pics are the same coins!

Ok, the product is called "dip-it", an automatic drip coffeemaker cleaner. I use a cotton q-tip to apply straight from the bottle (7 oz). When I've rubbed in the solution enough to do the clean, I wash the coin in an antibacterial liquid soap under the faucet. I've been using this method for quite a while and have yet to see any adverse effects.

It is not going to remove all negative surface problems. It isn't strong enough to hurt the patina or luster and the proofs show no signs of hairlining, even under a loupe.

This is only my method and take no responsibility for anyone saying it ruined their coin. I don't believe it could do that anyway. If you try this, do so on coins you would otherwise consider a write-off until you are convinced. I'm confident you'll have no problems regardless of coin with the exception of gold---I don't own any.

JFWIW

MrSpud

According to the products MSDS available at Dip-It MSDS the product contains "5-8% Sulfamic Acid and 20-22% Citric Acid". In case anybody was wondering. For comparison, heres a link to the MSDS for Goo Gone too Goo Gone MSDS .

ms70

Are you going to try the third party grading test?

maddogale

the product is called "dip-it", an automatic drip coffeemaker cleaner

and here I always used White vinegar........

spy88

Thank you MrSpud, I didn't realize these two agents were a part of the mix. The label says nothing of the products makeup. Here is sulfamic acids descrpition:

Sulfamic Acid
Amidosulfonic Acid
NH2SO3H
CAS REGISTRY NUMBER [5329-14-6]


Description
Sulfamic acid is a dry, non-volatile, non-hygroscopic, odorless, white crystalline, stable solid acid. It is moderately soluble in water by forms strongly acidic aqueous solution that is comparable in acidity to the common strong mineral acids but may be easily handled and stored in the dry form. At room temperature, dilute aqueous sulfamic acid solution is stable for a long time but rapid hydrolysis occurs at elevated temperatures. Its solution is less corrosive towards metals than other mineral acids. Salts of sulfamic acid are very soluble in water. Because of advantages such as handling ease, solubility and low corrosiveness, sulfamic acid has many diversified uses.

As the solution in dip-it is only 5-8% sulfamic acid, I don't think there is any harm that could come to coins from short exposures as I use.

dorkkarl

i hope you rinse the he11 out of those coins after your done cleaning 'em!

K S

spy88

<< <i> i hope you rinse the he11 out of those coins after your done cleaning 'em! >>





<< <i>I wash the coin in an antibacterial liquid soap under the faucet. >>

Coppernicus

It looks as if the method works very well on removing haze on proofs. It is less effective on circulated coins and even less so on copper. What else is new?

BTW, a circulated cent should never have a "brilliant" luster, especially on the high points. First test for a clened coin: a (worn) circulated specimen that is too bright. How does THAT happen?

Mike

spy88

Mike,

I was trying to find something that wasn't as harsh as a dip or Goo-Gone but something stronger then a soap wash that provided a reasonable amount of cleaning without any chance of harming the patina/luster or leave hairlines.

So far, I've found dip-it to be the least harmful. As the pics show, it doesn't get into the really bad surface problems of a coin. It is excellent for removing ugly toning, fingerprints/oil, and most surface contaminants. If you've got something worse then any of these on a coin, all dip-it will do is show just how bad it is after removing what it can.

And as you say, it does work very well on removing hazy/milky areas from proofs and so far, they don't return.

gemini12398

Have you submitted any of these coins to pcgs/ngc? Do they get slabbed?

magikbilly

<<I use a cotton q-tip to apply straight from the bottle (7 oz). When I've rubbed in the solution enough to do the clean, I wash the coin in an antibacterial liquid soap under the faucet.>>

<<..that provided a reasonable amount of cleaning without any chance of harming the patina/luster or leave hairlines.>>


Is it just me or does this sound like a bad idea....rubbing some undiluted unintended cleaner around on a Proof or MS coin with a Q-Tip?

Billy

Neptune

glad I don't drink coffee.

lordmarcovan

Interesting method.