Sgt Pepper

LP Protective outer sleeves?

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Sgt Pepper,

I highly recommend https://www.soundswholesaleltd.co.uk/

For quality poly paper inner selves and poly outer album selves.

The more you buy the cheaper they get.

Ive been using them on line and over the phone for well over ten years and had nothing but great fast service from them.

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Probably a few qualified people from the old linn forum  now on here will be able to tell you How & Why PVC covers breakdown over years ?

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Posted (edited)

Are plastic storage bins and bags safe for storing collections?

Polyethylene, polypropylene, or mylar / polyester (polyethylene terephthalate or PET) plastic zip bags, sleeves, or bins without any additional slip or coating agents are considered stable and inert plastics. Avoid polyvinyl chloride (PVC) and other unknown plastics.

PVC  contains softners , plasticizers or stearates.  PVC does migrate and can harm your Media .

Archival plastic enclosures can be made from mylar, polypropylene or polyethylene. Although mylar is the most inert of the three, it can generate static electricity which attracts dust and is very expensive. Polypropylene is a stiff, high clarity, and chemically stable plastic. Polyethylene is also chemically stable and although transparent in its low density form, is not as clear as polypropylene.  polypropylene provide the best balance of safety and affordability while maintaining crystal clear clarity and sparkling gloss for superior presentation qualities.

Plastic enclosures manufactured from polyvinyl chloride (PVC) are not recommended for archival  storage. This plastic, often referred to as "vinyl" is not as stable as some other plastics. It can contain volatile plasticizers and emit damaging hydrochloric acid as it deteriorates.

PAT tested with PAT logo

Photographic Activity Test is an ISO [1] standard test detailed in ISO 18916:2007 (E). Previous versions of the standard were numbered ISO 14523:1999(E); however, it was updated and renumbered in 2007.

PAT the test evaluates materials for archival quality and their use  Many different types of materials can be tested including: paper, boards, plastic, adhesives, pens, stickers, labels, paints and inks. The test involves incubating samples and detectors in a high-temperature, high-humidity accelerated aging environment

US library of congress

Edited by triumph

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