Problem with Coin Cleaning

Having a problem cleaning pennies. They have a red tint that I assume was from cleaning with dip and city water. Trying to reclean with dip and city water. Then do a acetone soak for about a minute and then using 3 other acetone dips and then air dry.
Coins are still turning red within a few hours. What am I doing wrong?

 

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Cleaning your coins.

 

If you don't know what you are doing, you are way more likely to cause damage to the coins than do them any good. Copper is especially hard to clean and have look natural. What are you trying to accomplish exactly, and do you have any images of what you are trying to remove?

 

DON'T CLEAN COINS!!!!!!!!!!!!!!!!!!!!!!!!!
Gotta love them "new members"

 

Is there a reason why these pennies need cleaning? OCD...?

 

I just don't understand how the oxidize so fast!
Use a hot sauce/toothpaste, and grind it with a buffer, that should buy you a week at least.

 

A new member "giving it' to another new member - that's a first for me!! Way to go Speedbump!

 

"New" member... when does that title change exactly...?

 

Dipping copper is usually a very bad idea unless it's highly diluted and really really quick.

 

Well you can change it , go to your info page - or wait till you get enough posts

 

ah ha!

alright, back on topic... about those clean pennies...

 

Not good using city water with chlorine and fluoride in it. The tint may just be from age and toning. If you use any water use only distilled. Of course I'm not advocating cleaning coins at all unless you cannot identify due to heavy encrustation like happens when you find with a metal detector.

 

Dick, get a camera. Pictures are worth 1000 words.

 

Funny - I would get flagged saying that!!

 

Yup, I get flagged on Listia for trying to insert Dick Tracy in a listing, it comes out **** Tracy. Go figure.

 

Oh God - that's funny!

 

I guess we have to refer to him as Richard Tracy - damn those thin skinned PC'ers

 

Back to the copper coin cleaning thing...whenever you make a fresh surface, it is prone to toning or corrosion, whichever you wish to call it. Copper coins are going to come out looking strange from whatever cleaning I have ever used or heard of. In order to protect the "naked" surface you have created, you could try oiling it until the oil dissipates or use VerdiCare.

 

The coins were cleaned with a one second dip in the coin dip purchesed at a coin store probably 12-14 years ago. They have all turned very dark and matt looking.
Yes, my water has all the additives of city water. It takes about a 2 second dip to remove whatever is growing on these pennies. I think this is what is making the red moss that is growing on my coins. I can easily get them back to the "naked" state but how do I keep them that way? I haven't tried the distilled water yet, I have that on my buy list for tomorrow. Also what is the VerdiCare?

 

http://www.wizardcoinsupply.com/products/verdi-care.html