Cleaning vs Conservation

[JohnA]

Why is it ok that NCS and others can use chemicals to conserve coins, but if we do that they are "detailed"?    

If we knew what chemicals they use, couldn't we use them and pass the dreaded "details" grading?

Not that I would want to "clean" a coin

And NCS does use various chemicals, as seen in this lab photo from the video.  

 

 

[JohnA]

In the video preview...I actually like the "Before" coin better. Looks more real/authentic

[sovereignsteve]

Of course they use chemicals to "clean" the coin, there's no other way of doing it.

It would be interesting if someone de-slabbed a NCS conserved coin and re-submitted it for grading as raw. I'm sure we would see some hypocrisy-pie served in abundance

[Xander]

Not sure if this is correct. I think it's the hairlines ( especially if they are close parallel lines) left on the coin as a result of wrong cleaning technique that results in them giving the coin a details grade.

[JohnA]

2 hours ago, sovereignsteve said:

Of course they use chemicals to "clean" the coin, there's no other way of doing it.

It would be interesting if someone de-slabbed a NCS conserved coin and re-submitted it for grading as raw. I'm sure we would see some hypocrisy-pie served in abundance

Yeah...I was thinking that too. Send a coin to NCS only. Get it back then send it to NGC.   

1 hour ago, Xander said:

Not sure if this is correct. I think it's the hairlines ( especially if they are close parallel lines) left on the coin as a result of wrong cleaning technique that results in them giving the coin a details grade.

I guess according to this it is ok to clean a coin. Just not too harshly. 

https://www.ngccoin.com/coin-grading/details-grading/

[JohnA]

@Numistacker ... hi, will NGC just Conserve coins without grading? And what is the cost, if so?

I am getting a 4 coin set in the OMP and Box. I would like to leave them as is but have them Conserved. They will have some tarnish. They are 1997, so I think it's best to have them Conserved, as apposed to an older set, like 100+ years where the toning would be ok..

[airmac]

I read somewhere on they're site I think it was that all coins going through conservation go automatically to grading afterwards

There's also a film n YouTube of where they use one of the products.

[Pete]

This is worth a read but there is a lot to absorb - https://www.jcms-journal.com/articles/10.5334/jcms.1021204/

Where is @Fluttershy when we seek guidance on cleaning coins ?