MS-70 COIN Brightener

[Davids5104]

Does anyone have experience with MS-70 coin brightener? As a matter of reference I was supposed to buy a different product called Uni-solvent by numiserve but bought this by accident. Now i do not know what this does or if it is bad for coins

 

[Nutmeg Coin]

I have heard different things about it; that is causes irreversible change to the surface of a coin; others, even long term numismatists said if you know how to use it it works wonders. I don't have confidence to use it.

[skippy]

When I tried it on shield nickels, the surfaces were left (to my eye) unnaturally bright.

[KeyMan64]

I have a lot of experience with it. Great product when used right.

It is not an acid that will mess with the metal of the coin.

It is an industrial cleaner.

 

Based on years of experience with the product:

Only use on silver coins that would grade at least MS64

and seem to have nice luster hiding under any grime.

Wear chemical/rubber gloves! It causes cancer if you live in California.

Not sure about other states or countries.

Use a q-tip to dip into the liquid and then just move that liquid around

on the coin over a sink. I use one q-tip per coin side.

Do not rub coin or scrub coin with q-tip! Just use it to gently move

the liquid around. Once finished, rinse very very very well with warm

water then pat/air dry.

 

I have used it on other coins besides silver but I would highly recommend

you experimenting on cheap coins NO MATTER WHAT you intend to use it on.

 

People have claimed that this product will turn copper blue but I have not

seen this on any coins I have experimented with.

 

When in doubt, DON'T.

The coin must have great luster on the coin to use it. If it does not you

will take the risk that grime has eaten away the luster layer on the coin.

If you remove the grime then you might end up with flat gray areas on the coin.

 

Good Luck!

[TonerGuy]

I have used it - ONLY on clad BU coins and it does a tremendous job cleaning up clads without damaging the coin. Its just a commercial grade cleaner that gets rid of surface grime and dirt.

 

I have no idea about silver or copper or < AU clad coins.

 

Note: I have used it as a dip and have immersed whole coins into it. Sometimes I use a q-tip to remove hard to reach grime & dirt. And then I rinse with distilled rubbing alcohol and distilled water, not tap water. Tap drive with clean soft cloth.

[e1cnr]

do not use it on circulated coins

 

it does interesting things on RB amd BN copper - uncovering some blues

 

 

When I was using it on Jefferson nickels, sometimes it removed the toning I still do not know why, unless it was a thin layer of PVC helping the color.

 

It is very slippery - be careful not to drop your coin down the drain.

[Coindude]

Try it on cheap coins first, do not use on copper.

[erwindoc]

I have had good results on low grade MS silver coins and even a few higher grade ones. A couple I even sent for grading with some making MS66! It makes the right AU coins look good too. It does not look good on anything too worn or it will look very unnatural. It is not supposed to remove toning, but in my experience with it, it does take a bit off. I use it to roll on the material with a cotton swab so it doesn't damage the surfaces. Pretty neat stuff. Try it out on a few low grade inexpensive coins. Bet you can find some stuff on YouTube too.