MS 70 and copper experiment

:secret:For those of you who like to experiment, try ms70 on copper coins. Just a couple a swabs w/a qtip. Rinse. Pat dry. Swab with olive oil. Can up a coin 2grades from pcgs pr64 to pr66. As seen on another forum. Makes me angry, hopefully not true. Please post results

 

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yes it is true, blue indians

 

what a blessing my great collection of cents will become greater quick where do i signup?

 

Shocking.:headbang:

 

I have tried MS-70 on copper. I have no idea why it would increase a coin's grade by 2 points, as it actually makes copper look to have an unnatural appearance. Instead of red or brown MS-70 can make it copper have a lighter pinkish peachy looking color.

I would only use MS-70 on gold and silver. This product works well to remove dirt, and grime. Usually it does not remove toning.

 

Yeah, I wouldn't use it on copper. Only xylene, Coin Care, or Blue Ribbon for copper coins.

 

They say MS-70 is nothing more then a strong detergent and won't change the color of copper, but I have my doubts.

I've been using it to clean metal detector finds and while it does clean well, I find the color of the copper not quite "natural". To be fair however, the coins in question were buried in the ground for close to a hundred years, so other factors may be at work here as well.

 

Guys, do you consider MS-70 as "cheating" or doctoring etc. And how do you compare it ethically with acetone etc.?

 

Read the instructions on the bottle... they even mention copper, and CuNi, and that you should be careful when dealing with these metals.

I know for a fact it will change the color of copper... just try it. It does.

 

I Agree

Ditto , do not use on copper .
rzage :smile:hatch::hammer:

 

People need to experiment with it. You can safely use it on copper without it changing the color.

 

I would like to see that in practice. Every copper coin I have put it on looks unnatural afterwards. I would definitely recommend someone seek another alternative before using MS 70 on copper.

Can you please explain your process or how you achieve good results with MS70 & copper.

I can't imagine a huge variance in results with this product as it is a detergent. Apply w/ Q-Tip, agitate, rinse.... how do you keep it from effecting the surface appearance?

 

I dont understand why it would make you angry?

 

What are some brand names of the commercial dips? I always thought MS-70 qualified as one.

 

I don't understand why you would want to use anything to try and enhance copper unless your Mail Box or Counter Top's are made out of it? Doesn't it decrease the value of your coin if you clean it or am I missing something that maybe I should know?
For my one cents worth, I like my pennies just like my women; original & natural!!!

 

Its a cleaner...some people dont like filthy coins but still want the tone...I have never used MS70 on copper so I cant say what it would do, I have MS70 I have used on silver which worked well. When cleaning copper you are trying to get the filth off without effecting the tone it has developed with age...

If you like your coins original then you should clean it down to the copper as that how it was before it began to corrode

 

Most dips contain diluted sulfuric acid and an aqueous thiourea solution which will take away the surface of a coin in seconds . MS-70 isn't that harsh . But is still not a good 1st choice .

rzage:smile:hatch::hammer:

 

The temperature of the coin and water used has a great degree of impact in how the coin will come out.

 

I love toned coins as much as anyone and I have some pennies that I wish were still red but I still don't understand cleaning them. Does it or does it not detract from the value? I understand that there are some coins that are so rare that it doesn't hurt their value as badly but for the majority it does? This topic may just be as subjective as grading?