One thing is missing from this great thread, and it's a photograph of one of these soft flips along with a brand name or two. I only buy flips that specifically say do not contain PVC, but flips do vary a bit in appearance and I'd really like a visual reference of what to look out for. If someone could shoot one of these flips and post it, it would be very helpful.
Whenever I crackout an old Green PCI slab, I use a small Pyrex bowl and give the coin an acetone bath. I have the urge to buy a PVC coin (cheap of course) and practice the removal process. I've heard that the old Green PCI/Hallmark slabs have PVC (that shower curtain smell).
Is rinsing with distilled water a necessity eventhough acetone evaporates quickly?
<< <i>Is rinsing with distilled water a necessity eventhough acetone evaporates quickly? >>
I highly recommend rinsing in distilled water, or pure alcohol. Unless you but the most expensive acetone, there may be doposits that you certainly don't want on your coins.
One thing that might be a useful addition to this VERY helpful PVC thread by Eric, would be an easy and quick test of whether or not a given holder has any PVC in it.
You must of course be very careful, as it involves working with flame.
Fashion a temporary holder out of some thin copper wire - make sure it is bare with no rubberized coating - and pierce a dime-sized piece of plastic from the holder in question with it, so that it won't fall off.
Test what color flame is present as you burn it. Again, be careful, often the plastic will immediately curl and drip off. I do this test over my stove, it's easy enough and you don't need to test a LOT of the plastic; again, just a very small amount.
If the flame burns ORANGE, the plastic is PVC-free. If it burns BRIGHT GREEN - PVC is present.
<< <i>Thanks for the info and bumping it up, i missed it.
what is a good acetone to use, hardware store? nail polish remover?
Thanks, /Kore >>
Never, ever use finger nail polish remover, it contains other compounds in addition to the acetone.
The type of acetone you can buy in hardware stores is fine, though it is not completely pure. Be sure to rinse with pure alcohol or distilled water afterwards.
Glad someone bumped this thread up, I was only familiar with PVC after it turned green! When I use acetone, I put into a little Pyrex bowl (bought a set of 3 at the grocery store) and cover it with a glass dish because acetone evaporates quickly. It is also highly combustible, so keep away from flames/sparks. I have also found it helps in removing tape glue residue.
After the dip and rinse, how does the coin dry without getting “wiped” ?
I found a few coins in my collection the other day, that I had forgotten to remove from the pvc flips.
You can pat it dry. Never wipe it as it could leave hairlines. Also, some rinse with fresh acetone which quickly evaporates.
Worry is the interest you pay on a debt you may not owe.
"Paper money eventually returns to its intrinsic value---zero."----Voltaire
"Everything you say should be true, but not everything true should be said."----Voltaire
After the dip and rinse, how does the coin dry without getting “wiped” ?
I found a few coins in my collection the other day, that I had forgotten to remove from the pvc flips.
Acetone evaporates very quickly. It's good practice to do a final rinse in clean acetone. If it has contaminants from the initial rinse, some of that can get redeposited on the coin.
You can check the cleanliness of the acetone by putting a few drops on a piece of Glass and letting it evaporate. If you see a residue left behind, the acetone is dirty
Acetone is also very flammable and can do number on countertops and plastic pipes. There are a number of threads in the archives on handling this stuff safely. If you are new to acetone, please find them and read them. You don't want to be "That Guy".
Comments
Tom
Coin's for sale/trade.
Tom Pilitowski
US Rare Coin Investments
800-624-1870
******
Whenever I crackout an old Green PCI slab, I use a small Pyrex bowl and give the coin an acetone bath. I have the urge to buy a PVC coin (cheap of course) and practice the removal process. I've heard that the old Green PCI/Hallmark slabs have PVC (that shower curtain smell).
Is rinsing with distilled water a necessity eventhough acetone evaporates quickly?
-mark
Photos of the 2006 Boston Massacre
<< <i>Is rinsing with distilled water a necessity eventhough acetone evaporates quickly? >>
I highly recommend rinsing in distilled water, or pure alcohol. Unless you but the most expensive acetone, there may be doposits that you certainly don't want on your coins.
You must of course be very careful, as it involves working with flame.
Fashion a temporary holder out of some thin copper wire - make sure it is bare with no rubberized coating - and pierce a dime-sized piece of plastic from the holder in question with it, so that it won't fall off.
Test what color flame is present as you burn it. Again, be careful, often the plastic will immediately curl and drip off. I do this test over my stove, it's easy enough and you don't need to test a LOT of the plastic; again, just a very small amount.
If the flame burns ORANGE, the plastic is PVC-free. If it burns BRIGHT GREEN - PVC is present.
Thanks for the thread, Eric.
what is a good acetone to use, hardware store? nail polish remover?
Thanks,
/Kore
<< <i>Thanks for the info and bumping it up, i missed it.
what is a good acetone to use, hardware store? nail polish remover?
Thanks,
/Kore >>
Never, ever use finger nail polish remover, it contains other compounds in addition to the acetone.
The type of acetone you can buy in hardware stores is fine, though it is not completely pure. Be sure to rinse with pure alcohol or distilled water afterwards.
See, this is good stuff
My posts viewed
since 8/1/6
good post Mr. Grump
Experience the World through Numismatics...it's more than you can imagine.
<< <i>K6AZ made some informative posts here... I wonder what ever became of him... >>
He still posts elsewhere, good guy, lots of info. short fuse.
<< <i>
<< <i>K6AZ made some informative posts here... I wonder what ever became of him... >>
He still posts elsewhere, good guy, lots of info. short fuse. >>
Ditto. Super short fuse, but very knowledgable.
<< <i>K6AZ made some informative posts here... I wonder what ever became of him... >>
He became a grader for ACG.
LOL, JK again.
Ditto. Super short fuse, but very knowledgable.
Rather get knowledgable information from someone with a presumable short fuse than idiotic comments/answers from those with a long fuse.
Not directed to anyone in perticular, JMO
Sorry, wrong thread
.
CoinsAreFun Toned Silver Eagle Proof Album
.
Gallery Mint Museum, Ron Landis& Joe Rust, The beginnings of the Golden Dollar
.
More CoinsAreFun Pictorials NGC FOR SALE
OLD THREAD.
After the dip and rinse, how does the coin dry without getting “wiped” ?
I found a few coins in my collection the other day, that I had forgotten to remove from the pvc flips.
https://www.autismforums.com/media/albums/acrylic-colors-by-rocco.291/
You can pat it dry. Never wipe it as it could leave hairlines. Also, some rinse with fresh acetone which quickly evaporates.
Worry is the interest you pay on a debt you may not owe.
"Paper money eventually returns to its intrinsic value---zero."----Voltaire
"Everything you say should be true, but not everything true should be said."----Voltaire
Acetone evaporates very quickly. It's good practice to do a final rinse in clean acetone. If it has contaminants from the initial rinse, some of that can get redeposited on the coin.
You can check the cleanliness of the acetone by putting a few drops on a piece of Glass and letting it evaporate. If you see a residue left behind, the acetone is dirty
Acetone is also very flammable and can do number on countertops and plastic pipes. There are a number of threads in the archives on handling this stuff safely. If you are new to acetone, please find them and read them. You don't want to be "That Guy".