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 Replies: 24 / Views: 1,663 |
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Moderator
 United States
56855 Posts |
100% pure acetone is fine. Not standard nail polish remover. I do not know what conserv solvent is. John1  |
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Valued Member
 United States
171 Posts |
I was told it was the only safe thing to put onto coins to prepare to send in for grading  |
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Moderator
United States
56855 Posts |
It says to use a cotton swab on the coin and blot dry with a cloth on the label, that is enough for me to not go anywhere near the stuff  John1 |
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Pillar of the Community
United States
7174 Posts |
Don't know what's in it so I wouldn't use. If anyone tells you to use anything other than acetone and Verdi-Care on copper, they are wrong.
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Pillar of the Community
Canada
6244 Posts |
I will not use this. Look at the composition and also the hazards (from MSDS)
Section 2 - HAZARDS IDENTIFICATION CORROSIVE: CAN CAUSE SKIN AND EYE BURNS. HARMFUL OR FATAL IF SWALLOWED.
Eye contact: Can cause permanent eye damage or blindness.
Skin contact: Corrosive and can cause permanent damage.
Inhalation: May cause irritation and corrosive effects to nose,
throat and respiratory tract.
Ingestion: Can cause burns to mouth, throat and stomach.
Section 3 - COMPOSITION/INFORMATION ON INGREDIENTS
Hazardous Ingredients: CAS # Weight %
Sodium hydroxide 1310-73-2 1 - 5%
Monoethanolamine 141-43-5 1 - 5%
Diethylene glycol butyl ether 112-34-5 10 - 20%
Chemical Formulation: Mixture
Hazardous Ingredients: CAS # Percentage % _
Isoalkanes, C10 - C13 68551-17-7 90 - 99%
Chemical Family: Aliphatic Hydrocarbon
Chemical Formulation: Mixture
Section 4 - FIRST AID MEASURES
Eye Contact: Immediately flush eyes with water for 15-20 minutes,
keeping eyes open. If irritation persists, seek medical attention.
Skin Contact: Immediately flush with plenty of water.
Inhalation: If breathing is affected, find fresh air. If not breathing,
give artificial respiration and seek immediate medical attention.
Ingestion: If swallowed, rinse mouth and seek physician and / or
poison control. DO NOT induce vomiting unless directed by medical
personnel. Never give anything by mouth to an unconscious person.
Aggravated Medical Conditions: Individuals with chronic respiratory
disorders such as asthma, chronic bronchitis, emphysema, etc. may
be susceptible to irritating effects.
Your bet on this solution. Silvio
Edited by silviosi
06/25/2023 6:28 pm
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Valued Member
United States
171 Posts |
So I soaked this coin in pure acetone for quite awhile and there is literally no change. Something else I should try?
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Bedrock of the Community
United States
94367 Posts |
Wow, stumper!  |
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Valued Member
United States
171 Posts |
After 4 hour soak in acetone  |
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Pillar of the Community
United States
5786 Posts |
This is an odd one. It sure looks like tape residue.
The anomaly looks to be about 1/3 the width of the coin which would make it about 1/4" wide.
Words of encouragement are one of the major food groups.
We need to consume them regularly to thrive and grow.
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Valued Member
United States
171 Posts |
Any ideas what else it could be? I agree with it looking like a piece of tape was on it leaving residue. Its a perfect match for that type of thing. However the acetone should have removed it if it was residue. The acetone didn't do anything to whatever it is. I am also stumped on this one.
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Moderator
United States
56855 Posts |
100% pure acetone did nothing,so maybe it is some type of epoxy? Not sure but maybe Zylen works on epoxy?Wait for other members input.It for sure is something on the coin and not a lamination. John1 |
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Valued Member
United States
171 Posts |
what would have epoxy on it that would leave this type of residue? So weird !!!!
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Pillar of the Community
Canada
6244 Posts |
Me I use isopropyl alcohol for epoxy, some paint or tape glue. another I use sometimes is Goo Gone Bandage & Adhesive Remover (not many time due the price and is good for skin so I prefer the isopropyl first..
Edited by silviosi
07/04/2023 3:57 pm
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Pillar of the Community
United States
7174 Posts |
We all thought it was tape. The one other thing I can think of is that it's a black mark from an old coin counting machine. These machines had a black rubber "tire" molded onto a wheel. The wheel would turn very fast and grab the coin and shoot it out as it counted it. I've seen coins in OBW rolls that had these marks. It they didn't have the machine set right, they would leave rubber marks on the coin like car tires and pavement. The rubber would wear off, but the damage to the coin wouldn't. That's all I got.
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Valued Member
United States
171 Posts |
Thanks for that information. Learned something new!!!!!
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Replies: 24 / Views: 1,663 |
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First Page
Posted 06/25/2023 2:07 pm
