White/Copper Spots Experiment

Discussion in 'Modern Chinese Coins & Medallions' started by heyimderrick, Nov 2, 2012.

  1. jc888888888

    jc888888888 New Member Silver Stacker

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    A 2005 a 1989 and Heyimderricks 2003 have been mailed today ,after cleaning to NGC ,let,s confirm how little I know about grading a coin ,I say the 1989 is a ms69, the 2005 is a ms68 ,and I have more faith in Derrick,s 2003 than he does:),I will call it an ms68.............
     
  2. heyimderrick

    heyimderrick Active Member

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    Wow, you really are the optimistic one! We make a good team at least. This will be fun.
     
  3. heyimderrick

    heyimderrick Active Member

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    Just tried this stuff on a gold coin that had some mild pvc residue. It did remove it after two cycles through the solution, rinse, and with some very light rubbing with my bare finger under water.
     
  4. Catseye

    Catseye New Member

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    I think this is a mistake, rubbing will scratch and degrade the coin.
     
  5. heyimderrick

    heyimderrick Active Member

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    It could if done aggressively and with pressure. But I emphasize the very light, and bare finger again. Clean, wet skin isn't something I would consider abrasive. To each his own. I sent the coin off to NGC the other day as I was happy with the result. NGC graders handle your coins barehanded as well.
     
  6. heyimderrick

    heyimderrick Active Member

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    The PVC coin mentioned is coming back from NGC MS69.

    JC also has some exciting results to share from our experiment. :D
     
  7. jc888888888

    jc888888888 New Member Silver Stacker

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    your coin brother ,:) you announce :)
     
  8. heyimderrick

    heyimderrick Active Member

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    This coin is coming back from NGC in MS68! Far better than I imagined. HQ photos to come once it arrives home.

    It's also for sale for whoever wants it :cool:
     
  9. Justfishin

    Justfishin New Member

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    Congrats guys---nice to see it turn out well!
     
  10. Catseye

    Catseye New Member

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    Most excellent news, thank you for keeping us posted!
     
  11. jc888888888

    jc888888888 New Member Silver Stacker

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    The NGC cert # on the 2003 pictured above is 2781126-016
    Congrats !!
     
  12. heyimderrick

    heyimderrick Active Member

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  13. jc888888888

    jc888888888 New Member Silver Stacker

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    some folks might not know ,but the cert # is your invoice # then dash and the 3 digit line item # on your Ngc invoice so you can actually view your coins before you receive them from NGC ,while waiting for them to get thru the mail
     
  14. jc888888888

    jc888888888 New Member Silver Stacker

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    A total of three coins so far have been graded by NGC ,no problem after being dipped in the EZ-est coin cleaner ,I have played with the cleaner IMHO it does a great job in removing toning from silver coins.......... milk spots i think it can help on certain types ,as we all have seen on the 2003
     
  15. heyimderrick

    heyimderrick Active Member

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    I concur. This stuff works really well on surface contamination, including PVC. If done carefully and thoroughly, you can get great results and avoid damage to the coin. White spots and copper spots that are from substances in the metal itself cannot be removed with this stuff, but that shouldn't be a surprise. While it seems to be a proven, useful solution, it's important to keep expectations in check.

    Alternative to NCS for the minor surface stuff? To me, yes. Alternative for major problems on high-value coins? Probably not.

    Fun experiment. Many thanks to JC for his assistance and participation. :cool:
     
  16. silverstar1

    silverstar1 New Member

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    Interesting experiment guys , Thanks for sharing the results!
     
  17. gerald

    gerald New Member

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    Just curious, how did your 89 and 05 grade?
     
  18. gerald

    gerald New Member

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  19. heyimderrick

    heyimderrick Active Member

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    LOL, of course it is controversial, especially when you find a board with old school coin collectors. The truth is, anything that has to do with "cleaning" a collectible coin is controversial to somebody in the coin world. It is inevitable. I've read threads about NCS where numismatists consider their techniques controversial as well. The simple fact is, NCS uses something to clean your coins. Purified, distilled water rinses alone aren't going to remove grit and grim and PVC and shine the surface of your coin. NCS may not disclose what they are doing or using in their processes, but it's cleaning under the term "professional conservation". They do amazing work, and I have paid handsomely for their services, but their process of neutralizing the surface of a coin is technically cleaning. I know this is going to get some people fired up. :rolleyes:

    It's very easy to get into heated debates with collectors about this stuff. If you want to get into the grey area, obviously you can take cleaning to extremes where the coin is aggressively dipped and scrubbed. This to me is foolish and wrong, especially if you try to pass off a damaged coin to an unsuspecting buyer.

    For me, with the 2003, I followed the directions on the solution, handled the coin with the utmost care and you can see the results for yourself. Obviously the coin shows no signs of improper treatment, surface damage, contamination or residues because it was graded by the experts and not sent home in a body bag. I take the experiment and results as a sign that we did this process in a responsible manner.

    I think it was a good learning experience for all of us overall. :cool:
     
  20. tamo42

    tamo42 New Member

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    Worth the $7 or whatever difference though?
     

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