Are these bill holders really archival safe?

Hello Fellow Coin Collectors,
I owe a lot of thanks to this board for introducing me to Provident Metals.
I am in need of some bill holders for US currency from the last few decades. I saw some
on the Provident Metals website. However, it is not stated what material this is made out of and
customer service could not say anything about it either. Anyone knowledgeable about this:
Bill Holders
I owe a lot of thanks to this board for introducing me to Provident Metals.
I am in need of some bill holders for US currency from the last few decades. I saw some
on the Provident Metals website. However, it is not stated what material this is made out of and
customer service could not say anything about it either. Anyone knowledgeable about this:
Bill Holders
"So many of our DREAMS at first seem impossible, then they seem improbable, and then, when we SUMMON THE WILL they soon become INEVITABLE "- Christopher Reeve
BST: Tennessebanker, Downtown1974, LarkinCollector, nendee
BST: Tennessebanker, Downtown1974, LarkinCollector, nendee
0
Comments
BST: Tennessebanker, Downtown1974, LarkinCollector, nendee
Try Denley's of Boston. They have been selling high quality Mylar holders for paper money for many years.
<< <i>you can make your own holders out of mylar sheets using an inexpensive food bag heat sealer. PVC it self does not migrate it off gasses and those gasses are detrimental to whatever you are storing. When you buy a new car and that film that builds up on the inside of the windshield is a great example of this issue. >>
PVC contains a plasticizer to make the PVC flexible. This oily substance will be absorbed into the paper like an ink blotter thus causing the paper to be damaged.
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
BST: Tennessebanker, Downtown1974, LarkinCollector, nendee
ZeroHedge makes debut at White House press corps briefing
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
<< <i>
<< <i>you can make your own holders out of mylar sheets using an inexpensive food bag heat sealer. PVC it self does not migrate it off gasses and those gasses are detrimental to whatever you are storing. When you buy a new car and that film that builds up on the inside of the windshield is a great example of this issue. >>
PVC contains a plasticizer to make the PVC flexible. This oily substance will be absorbed into the paper like an ink blotter thus causing the paper to be damaged. >>
And it's also not the off gassing that is damaging to coins. When that plasticizer and metal touch-- chemical reaction
http://www.meghrigsupplies.com/CURRENCYHOLDERS.html
<< <i>If a coin holder or paper money holder is archivally safe they are usually advertised as "non-PVC" or "PVC free". If you don't see this assume they are PVC and are unsafe for long term storage. >>
Unfortunately, that's not enough. Some supply dealers advertise unplasticized vinyl as "non-PVC" and/or "archival". It is best to look for those that affirmatively say they are made of polyester or Mylar (one trade name for polyester).
Wayne