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 Replies: 10 / Views: 395 |
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New Member
United States
10 Posts |
Many of these coins I inherited are dirty. I have a steam cleaner and ultrasonic cleaner I use in my dental lab. I am aware of the no cleaning rule but how it applies to these methods? Thanks Noob Rex |
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Pillar of the Community
United States
882 Posts |
Quote:
Many of these coins What coins?
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Pillar of the Community
United States
2608 Posts |
 to the CCF! I've read that ultrasonic cleaning can cause microscopic scratches on the surface of the coins. The dislodged debris from the coin or the plastic basket can rub against the vibrating coin and damage it. I can't really find anything on steam cleaning causing damage, but if it's a pressure cleaning device, I would think the same would apply to the dislodged material moving across the surfaces, but that's just my opinion.
The first US coin motto was found on a 1792 half disme and read: "LIB (erty) PAR (ent) OF SCIENCE & INDUSTRY"  |
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New Member
United States
10 Posts |
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Pillar of the Community
United States
882 Posts |
Quote:
I've read that ultrasonic cleaning can cause microscopic scratches on the surface of the coins. The dislodged debris from the coin or the plastic basket can rub against the vibrating coin and damage it. I can't really find anything on steam cleaning causing damage, but if it's a pressure cleaning device, I would think the same would apply to the dislodged material moving across the surfaces, but that's just my opinion. I would tend to agree with that. Quote:MOS0239: Walking Liberty Halfs, 1935-45. Mercury dimes, Roosevelt dimes, Buffalo Nickels  Quote:
Steam And Ultrasonic Cleaning? One word: NO!
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Bedrock of the Community
Australia
17886 Posts |
Ultrasonic cleaning is very often used by professional jewelers for pieces valued at $thousands.
Haven't tried pure boiling water, but most of know about acetone.
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New Member
United States
10 Posts |
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Pillar of the Community
United States
882 Posts |
Thanks for the pichers. Love that silver!!  ! |
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Bedrock of the Community
United States
20013 Posts |
Ever hear of Acetone?
just carl
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Pillar of the Community
United States
2608 Posts |
I don't see enough difference in the before and after images to justify the process. Also, the steamed coins seem to have a blueish tone to them that doesn't look natural. I would prefer the original dark coins over the steam treated coins because, to me, the steam makes them looked cleaned.
The first US coin motto was found on a 1792 half disme and read: "LIB (erty) PAR (ent) OF SCIENCE & INDUSTRY" |
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New Member
United States
10 Posts |
Just Carl, yes I know what Acetone is but dont have any in my lab.
Yokozuna, I would agree with this. It 'looks' cleaned in my hand too. But doesn't look blue in my hand so thats lighting or flash.
Thanks
Rex
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Replies: 10 / Views: 395 |
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Posted 11/24/2020 10:26 am
