I'm not certain what you are looking for, but take a look at Metal Edge
archival storage. They have both sleeves and "record storage envelopes"
and describe the archival qualities, if any, of each product:
On 8/19/2014 12:19 PM, Nick J. Patterson wrote:
> Dear Collective Wisdom,
> We've got a few hundred 12" vinyl LPs, that are lacking jackets.
> I've perused the usual library/archival supply companies, but don't find an
> *archival-quality* 12" LP jacket.
> Instead, I've seen paper envelope-style sleeves, which will accommodate the
> LPs, but are not very sturdy - about the same thickness as a manila file
> I've seen the standard cardboard 12" jackets, available from vendors such
> as Bags Unlimited - but they are not archival-quality.
> So, to the list - is there some product or source for these jackets that I
> may have missed?
> If not, I guess one imperfect option would be to use archival poly inner
> sleeves, and house those inside the non-archival cardboard 12" jackets....
> Any info greatly appreciated.
> best, /Nick
West Hills, CA 91307