#5588312 - 04/09/12 07:17 PM
Re: The worst level of PVC I've ever seen was on some coins I picked up this weekend
[Re: Dcoin]
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nunfa0
The Post-man always rings twice. Uhm... ring ring?
Registered: 08/30/10
Posts: 1666
Loc: Christchurch, New Zealand
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You do wonderful work with acetone. Thanks for sharing James!!
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#5588978 - 04/09/12 10:59 PM
Re: The worst level of PVC I've ever seen was on some coins I picked up this weekend
[Re: e1cnr]
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Arizonadesertrat
Collectosaurus Rex
Registered: 07/21/07
Posts: 388
Loc: AZ
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When PVC decomposes (and this is accelerated by heat), vinyl chloride monomers can vaporize and deposit elsewhere, so finding PVC inside 2x2s isn't very surprising. When vinyl chloride decomposes, hydrochloric acid is released, and this will etch coins.
_________________________
Interests: large cents, Draped and Capped Bust coins, foreign coins that circulated in the colonies and early federal U.S., numismatic literature, and historical mint medals.
Member: EAC, NBS, JRCS, MCA, TAMS, C4, ANA
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#5589327 - 04/10/12 05:45 AM
Re: The worst level of PVC I've ever seen was on some coins I picked up this weekend
[Re: e1cnr]
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James_EarlyUS
TOTAL NEWBIE
Registered: 09/12/03
Posts: 15158
Loc: St. Louis, MO
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even in 2x2 holders the PVC leached in?
YES! That's why I think there is just no reason to mess around with PVC-anything.
This situation has taught me a lesson. Don't even bother with PVC vinyl pages, much less PVC flips. We have some auction companies who continue... even today... to put coins into "temporary" PVC holders. Why do they want to take that kind of risk?
It's such a serious problem that if someone wants to link this thread ATS, I won't mind at all. Get the word out. The crusade reminds me in some ways of the "coin doctor crusade", except that I would bet this vicious, insidious substance has ruined FAR more coins than coin doctors ever have.
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Proud EX-50% owner of the banned PCGS-certified Norweb/non-Norweb Wood Hibernia
My posts express my PERSONAL opinions ONLY. Please respect my right to Freedom of Speech as I respect yours.
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#5589556 - 04/10/12 09:52 AM
Re: The worst level of PVC I've ever seen was on some coins I picked up this weekend
[Re: Lehigh96]
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messydesk
Up 20 words per minute since I signed up
Registered: 03/08/10
Posts: 1007
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I bought a small collection a few years ago that included a 1964 French mint set. The coins were packaged in a PVC sleeve, and I was using acetone to get green goo off my hands after removing the coins.
Nice salvage job!
_________________________
John President, Society of Silver Dollar Collectors Contact me for coin imagingOnsite imaging at CSNS 4/24-26, Table 805 
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#5589622 - 04/10/12 10:23 AM
Re: The worst level of PVC I've ever seen was on some coins I picked up this weekend
[Re: messydesk]
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Timely
TOTAL NEWBIE
Registered: 07/10/03
Posts: 6652
Loc: Sarasota, FL
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Even the staples have moderate rust & rust migration, which we see a lot on the comic book side. PVC is really bad for comic books too.
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#5589886 - 04/10/12 12:34 PM
Re: The worst level of PVC I've ever seen was on some coins I picked up this weekend
[Re: Timely]
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kryptonitecomics
First Official Signature Set
TOTAL NEWBIE
Registered: 03/11/03
Posts: 8005
Loc: O-Town Baby! Home of the Magic
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Wolverine got to the 1835 quarter.....what a shame 
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