09-14-2017 04:56 PM
Came across a box them, mostly used some new. Seems based on what I am reading these are bad for coins and should be thrown out. Is that correct?
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09-14-2017 08:35 PM
@laumpc wrote:Came across a box them, mostly used some new. Seems based on what I am reading these are bad for coins and should be thrown out. Is that correct?
laumpc,
That is corrrect. These albums contain PVC and will cause coins to be covered in green slime over time. The green slime is PVC damage done to the coins' surfaces and if the slime is left on too long, the PVC damage can go deeper into the coins.
Acetone may be used to remove the green slime off coins, but using acetone also changes the coins' surfaces. . . .
Godzilla_Goose
09-14-2017 08:35 PM
@laumpc wrote:Came across a box them, mostly used some new. Seems based on what I am reading these are bad for coins and should be thrown out. Is that correct?
laumpc,
That is corrrect. These albums contain PVC and will cause coins to be covered in green slime over time. The green slime is PVC damage done to the coins' surfaces and if the slime is left on too long, the PVC damage can go deeper into the coins.
Acetone may be used to remove the green slime off coins, but using acetone also changes the coins' surfaces. . . .
Godzilla_Goose
09-14-2017 08:51 PM
Thanks - I am just going to toss them. I saw some being sold on eBay. Decide I should checl before tossing them. I do not want to sell anything that is harmful.
Are there any Dansco albums that are bad? Have some used ones also in this box.
09-15-2017 02:54 AM
acetone does NOT change a coin's surface, but it also doesn't reverse the damaged caused by PVC...
what it does do is help remove substanced adhered to the coin... such as tape, glue, or other gunk...
09-15-2017 02:59 AM
@laumpc wrote:Thanks - I am just going to toss them. I saw some being sold on eBay. Decide I should checl before tossing them. I do not want to sell anything that is harmful.
Are there any Dansco albums that are bad? Have some used ones also in this box.
some people collect albums and don't use them for coin storage... IOW, you could literally be throwing money away...
09-15-2017 08:47 AM
*smedley*,
When I wrote that acetone changes the coins' surfaces, I am looking at this from a purist's point of view in that the surfaces of the coins are no longer in their original (or natural state) but they have been treated with a chemical solvent, that being acetone.
From what I understand, acetone will NOT remove natural toning from silver coins but it will remove artificial toning from silver coins, thereby changing the coins' surfaces. Maybe, it would be more clear (or precise) if I had written that acetone treated coins changes the coins' original surfaces since these coins are no longer untreated (or "conserved").
Godzilla_Goose
09-15-2017 08:49 AM
Did not know that. Collectors want these Harco Coinmaster?
Okay - I will try them and disclose in the description these are not safe for storing coins.
Thanks for the info.
09-15-2017 08:50 AM
09-15-2017 10:08 AM
What Dansco albums do you have? Some of the foreign can be very hard to find.
09-15-2017 04:27 PM
acetone is an organic solvent... it does not affect metal... it will not disturb or damage a coin's original surface, toned or otherwise...
caution must be exercised when working with acetone... do not work with acetone without reading the MSDS, or at least the warnings on the container...