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Are Colorless Stock Sheets Safe to use?  
 

 
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Lebanon
2 Posts
Posted 09/13/2018   3:06 pm  Show Profile Bookmark this topic Add ballouta to your friends list Get a Link to this Message
Hello all,

i would appreciate any help or review about the colorless album sheets..

lately many companies are selling them (saw them at lighthouse website)... they come in different sizes which I guess is good for stamps, blocks, or large documents

are they safe to be used to store stamps. they say it is Acid free which should protect the stamps
or is it better I use the ordinary black sheets

i attached few sample sheets

thank you in advance for everyone replying
ziad





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United Kingdom
3310 Posts
Posted 09/13/2018   4:24 pm  Show Profile Check GeoffHa's eBay Listings Bookmark this reply Add GeoffHa to your friends list  Get a Link to this Reply
Collectors store most printed ephemera (cigarette cards, postcards etc) in clear album leaves. And they're widely used for stamp album leaves (eg by Lindner and Safe).
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United Kingdom
491 Posts
Posted 09/13/2018   4:57 pm  Show Profile Bookmark this reply Add Ringo to your friends list  Get a Link to this Reply
If Lighthouse are selling them and confirming acid-free, I would think they are safe. I would be cautious about unrecognised brands and unbranded ones, however.

They do look good the way you've photographed them, but in an album, wouldn't the appearance be spolied by the fact that you can see bits of the next page (and the next, and the next) through the clear plastic?
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Edited by Ringo - 09/13/2018 4:59 pm
New Member
Lebanon
2 Posts
Posted 09/13/2018   5:19 pm  Show Profile Bookmark this reply Add ballouta to your friends list  Get a Link to this Reply
lighthouse sells also black plastic sheets to insert between those colorless. so you dont see what is on the next page ;)

the sheets I uploaded were sold by Importa - danish company- guess now they stopped manufacturing

so far lighthouse and lindner are selling.. am almost sure they are good honest companies . with the advantage that lighthouse being cheaper and offers wide variety of pocket sizes and shapes

i personally like the fact that you can see both sides especially if you are adding stamps + a related document ...etc as shown in the pictures it covers well all the stamps which protects them from external factors

so will hit it and buy a few sheets and try :)
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Australia
23605 Posts
Posted 09/13/2018   9:53 pm  Show Profile Bookmark this reply Add rod222 to your friends list  Get a Link to this Reply
I winced when I saw your picture.
The very best of luck if they prove archival.

I purchased a small collection 6 years ago, just to remind me of what NOT to do.
These are Plastic coin pockets, most of the stamps damaged beyond repair.
The chemicals in the plastic have migrated.
Esp. the aniline, the colour has completed leached.

I'd very much like to read what plastic is used in those sheets.

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Edited by rod222 - 09/13/2018 9:55 pm
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Germany
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Posted 09/14/2018   02:24 am  Show Profile Bookmark this reply Add stamperix to your friends list  Get a Link to this Reply
Probably there are many products with problems out there, but not only cheap ones where you do not know nothing about, but also many products of the big album manufacturers.

PVC can be a problem. It's not only about the acid or the softeners, but more about the stabilizers. At the end you get a bad atmosphere within the PVC (even if the stamp is inside a better mount in it) and mostly early stamps can get lead sulfid damage.

see here: (you can use Google translate)
https://www.bpp.de/de/Folienproblematik.html

but it's not only about the PVC, but also or mainly about the missing ventilation for the stamps or chemicals in the environment air, so it's possible that it's also relevant for other plastic:
https://www.bdph.de/forum/showthrea...=1#post61215

anyway other plastic like polystyrol or polyester without these stabilizers seems to be better (I don't know if these are the correct terms in Englisch for stamp mounts and albums). I don't use PVC and no pages which are plastic only, but have paper on the back for the ventilation.
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Edited by stamperix - 09/14/2018 02:54 am
Pillar Of The Community
United States
892 Posts
Posted 09/14/2018   5:02 pm  Show Profile Bookmark this reply Add hy-brasil to your friends list  Get a Link to this Reply
I have had no problem with Lighthouse pages with stamps on/in the pages for like two decades. I do find that the all-clear pages are not always offered in all pocket sizes everywhere.

One test of plastic is: is there a greasy/liquid feel to the plastic? That's a sure sign of plasticizers/softeners and other chemicals left on the surface; bad stuff as noted above. It doesn't necessarily mean the plastic is okay if it doesn't feel that way also as noted above. That feel is subjective though, as some people interpret the feel of poly cover sleeves as "greasy" whereas those are just very smooth to me. Poly sleeves are basically inert. At least, I have covers in 40yo poly sleeves that are just fine as are the covers inside.
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Stamp Smarter's 20th Century US Fancy Cancel database:
http://www.stampsmarter.com/feature...rn_Home.html
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United States
360 Posts
Posted 09/15/2018   04:01 am  Show Profile Bookmark this reply Add tikithindi to your friends list  Get a Link to this Reply
hi,
On safe side use Acid free and lignin free stock pages.

For stamps Scott, Lighthouse, Vario etc are safe and Archival.


tikithindi
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2438 Posts
Posted 09/15/2018   7:06 pm  Show Profile Bookmark this reply Add modern_who to your friends list  Get a Link to this Reply
ballouta,

The sheets you show look good. I was a professional photographer and worked almost exclusively with transparency film (slide film) which is what was demanded by publications. I no longer remember the terms for these plastics, but the old slide pages, similar to what rod posted emitted a gas that was thought to be damaging to transparencies over time. They were replaced with a more pliable plastic that resembles your sheets.

What effect the older, harder, plastic rod is using will have on his stamps, I don't know. But it wasn't archival for storing transparencies.
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Larry, APS Member

Modern-Vue Stamps on eBay
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Australia
23605 Posts
Posted 09/15/2018   7:48 pm  Show Profile Bookmark this reply Add rod222 to your friends list  Get a Link to this Reply

Quote:
plastic rod is using will have on his stamps


Just a clarification.
I was offered this small collection 6 years ago, just a small album, possibly from a schoolboy.
I think I paid around $2 I bought it because I identified the plastic damage,
and wanted to see how it deteriorated over time.

Some stamps have weathered well (or it seem to the naked eye) but others have bleached badly, leaving an image in the plastic.
I think it is PVC

I think "Mylar" was the preferred plastic, a lot of plastics in the Philatelic world are still questionable over time / light.

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Edited by rod222 - 09/15/2018 7:51 pm
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Posted 09/15/2018   8:42 pm  Show Profile Bookmark this reply Add modern_who to your friends list  Get a Link to this Reply
Yes, PVC, Polyvinyl Chloride. Not recommended.

I looked up the archival slide storage sheets; they are polypropylene, and appear to be what ballouta shows.
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Larry, APS Member

Modern-Vue Stamps on eBay
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