| Author |
 Replies: 21 / Views: 2,074 |
Page 2 of 2
|
|
|
|
Pillar of the Community
United States
2365 Posts |
I can't remember the chemical make-up but, how about the fingerprinting dust used in Law Enforcement? I know someone that I will ask this of...hmmmm It would have to be a new print though and I don't know if it would only make an impression or remove the print entirely.
|
|
Pillar of the Community
United States
1203 Posts |
As Susan said,"As far as I know, the only time that acetone will work on the finger oils is when the print is fresh." This is what I have found to be true, and even then it sometimes becomes necessary to very lightly brush the surface of the coin with a Cammel hair brush, to work the acetone into the oil of the print.
I would not use Jeweluster if I were you.
After the oils have damaged the surface, it's too late to think of removing any trace of the print. Generally speaking.
|
|
Bedrock of the Community
 United States
14454 Posts |
I have seen coins sent to NCS have finger prints when they were sent in and they came back print free and I was just wondering if anyone knows how they do it ir if anyone has had any luck with anything at all to remove these things. I even have a PCGS coin that a buddy of mine sent into for me that had no finger prints on the coin but now since its in the slab one appeared as if PCGS fondled it before slabbing it, I would hope they use gloves while grading these things but I have no idea how the dadburn finger print got on the coin
Edited by Bryan1315
09/12/2006 9:10 pm
|
|
Pillar of the Community
United States
2365 Posts |
Would the Coin Conservation share their knowledge?
|
|
Valued Member
New Zealand
227 Posts |
quote:
Originally posted by dsking
I can't remember the chemical make-up but, how about the fingerprinting dust used in Law Enforcement? I know someone that I will ask this of...hmmmm It would have to be a new print though and I don't know if it would only make an impression or remove the print entirely.
Fingerprint dust is horrible stuff that is almost impossible to remove. I know this because my home was broken into a few years back and we disturbed the burglars so they dropped a bag full of booty below a window. In the bag was my vcr and it still has traces of dust to this day.  |
|
Rest in Peace
United States
2684 Posts |
I think NCS gets away with cleaning coins whereas if we tried it using the same techniques, it'd come back to us in a bodybag. I'm pretty sure NCS actually removes some of the coin's metal when they "conserve" a coin (they would have to in order to remove an old fingerprint), but they do it well enough that it passes as an almost new coin.
|
|
Pillar of the Community
United States
2365 Posts |
quote:
Originally posted by grouse12
quote:
Originally posted by dsking
I can't remember the chemical make-up but, how about the fingerprinting dust used in Law Enforcement? I know someone that I will ask this of...hmmmm It would have to be a new print though and I don't know if it would only make an impression or remove the print entirely.
Fingerprint dust is horrible stuff that is almost impossible to remove. I know this because my home was broken into a few years back and we disturbed the burglars so they dropped a bag full of booty below a window. In the bag was my vcr and it still has traces of dust to this day.
OK - strike that from the idea bag! |
|
Pillar of the Community
United States
1703 Posts |
Bryan, I would suggest you try a common degreaser.Such as Purple Power or Castrol super Clean,either can be purchased at a local Wal-mart. It shouldn't have any effect on the metal of the coin but will remove the oil of a finger print. I would try it on a non valuable silver coin first just to be safe.I would try a Q tip and a small amount of cleaner. If the print has been on the coin for a long time its possible the salt from the skin would do permanent damage. |
|
Valued Member
United States
394 Posts |
Hi Bryan1315, have you tried WD-40? I would practice on some cull or something first, but there is a possibility that it could do the job. Either way hope you find a solution and pass it on to your forum mates, good luck.
Berry
|
|
Forum Mom
 United States
5877 Posts |
In my opinion, if this is a valuable coin, I would just leave it alone. Soak it in acetone to prevent any further toning of the print and be done with it. If it's not very valuable and you don't mind reducing the value, then you may want to experiment with these other methods.
The other option is to send it to NCS. I know that they are not going to share their secrets about how they remove fingerprints, but they could get it off for you.
Also, NONE of the TPGs' graders use gloves. I was surprised to find that out but it is definitely true.
|
|
Pillar of the Community
United States
2365 Posts |
"...so I figured I would ask here where everyone seems to to have their brain in their head instead of where they sit to see if I can get a straight answer." That was a nice compliment and I think we all missed it! Thanks!  |
|
Pillar of the Community
Belgium
2078 Posts |
This is not a joke and not a recommendation 1) Acetone if that does not work decide two 2) e*Z*est or juweluwtre ( will take some metal away ) if not satisfied try annealing 3) open flame bunsenburner on natural gas do not heat beyond the stage very dark red It will be obvious that you need to experiment and need some luck  |
|
Bedrock of the Community
United States
14454 Posts |
you think NCS will be able to help this UGLY thing?  |
|
Pillar of the Community
United States
986 Posts |
I don't suppose that they can make it any worse, so there can't be harm in sending it in to them.
|
|
Bedrock of the Community
United States
14454 Posts |
the coin I posted that is almost Black is already in a NGC holder and graded MS-64 its a VAM-81 which is in my B1 Reverse Registry set
|
|
Page 2 of 2
|
Replies: 21 / Views: 2,074 |
Page 2 of 2
|
First Page
Posted 09/12/2006 9:06 pm
