I was recently given a BCW currency portfolio. Seeing as the pages are vinyl I wasn't sure if it was safe for currency storage. Of course, after looking at similar products from Whitman and Dansco, I noticed their pages are all vinyl as well. Just trying to get some storage insight before I trust my paper to this album. Guy~
Guy.. for whats it's worth, I have always used a mylar product for any Paper that I store. You should look up vinyl products and get a MSDS sheet on them as well as chem breakdown on the product. Hey what a nice project this would be for the SEG, what do you think? RB
[FONT=arial, Helvetica]Guy: I use Safgard Currency Sleeves However, I only use the individual Safgard sleeves and am not sure if Safgard even makes multi-holder sheets. Safgard are Mylar, [/FONT][FONT=arial, Helvetica]a brand name for Dupont's[/FONT][FONT=arial, Helvetica] BoPET Polyethylene Terephthalate film which is the best, safest material you can use to preserve your paper collection. [/FONT][FONT=arial, Helvetica]Some of the other makers, like SuperSafe® Currency Sleeves use vinyl-free polyester materials which I believe are safe for your collection.[/FONT]
I did find some of the SuperSafe sleeves and ordered them, based on the info I dug up here: http://www.cointalk.com/t51602/ I figure if they're safe enough for the Smithsonian collection, they should work for me. Right now I have everything in Safeguard sleeves, but I wanted to put them, still inside the sleeves, into two note binder pages so they're in one place and easy to access. Most I found were vinyl, however, and spelled like a shower curtain, a sign I've learned that they contain PVC or other plasticizers. So, now I need to offload my vinyl pages. I'm thinking a closet, as I don't want to ruin someone's collection. Guy~
An Excellent Line of Storage Products "Denly's of Boston" (Tom Denly) has arranged to have manufactured many different sizes of MYLAR D holders/pages. He has quantity pricing, sells Binders/Slip Cases and is a long-time dealer friend of the hobby. After trying hundreds of a few different varieties, I now stick exclusively to MYLAR D for my entire collection (including stocks/bonds).
Ditto!! Mylar-D that,s what i store my high quality Mpc in, Vinyl and Pvc have a bad track record Stored some baseball cards in a album when i was in elementary school pulled them out a few Years back sheets were cracked hard and yellowing removed them before they could damage The cards themselves, so i got lucky there some are worth several thousand dollars!
Mylar D is no longer made. The "Mylar D or equivalent" sleeves from Denly's are made from Melinex 516 film which also meets the Library of Congress Specification Number 500-500-5/31/95 for use in archival storage. Tom Denly indicates: "Mylar D is a Brand name owned by Dupont plastics. It is truly a true polyester with an alignment of the molecules in long straight runs. The true reason Mylar D is so good is that it is made to an American Society of Testing Materials standard of purity that is extremely tight. Many plastics are mixed with other materials which will lower its melting point to a point that it can be heat sealed, these additions are in some cases sulfuric acid, hydrochloric acid, many oils, and occasionally esters. If not mixed perfectly these additives can leach out of the polyester into the paper money. You will find that our holders are made to the Standards of Mylar D for purity and therefore can not be heat sealed but are welded to form a perfect seal. Our holders are manufactured by computer driven machines such that each holder is exactly like the next. When I first got into the holder business Dupont made Mylar D, ICI Corp made Melinex 121, and Three M made a third brand of polyester each to the same A. S. T. M standard. Three M stopped making the material as there was too much competition for the limited need for the material, Then Dupont bought ICI Corp and realized that why compete and ICI could make it all which it does now. So truly it is a Melinex 121 make to Dupont Standards and Dupont ownership." Melinex 121 is now Melinex 516.
