Distilled white vinegar will also work on cardboard jackets infected 
with mold. You can use the vinegar full strength. You will have to 
saturate both sides of the jacket and then set it aside without wiping 
it. Wiping the wet cardboard will damage the jacket. I use a squirt 
bottle and will sometimes give a couple of squirts to the inside of the 
jacket as well. Let the jacket set overnight or until dry without 
anything in it. It's a good idea to press the jacket flat after it's wet 
to avoid warpage. I use ceramic tiles with some weights or clamps but 
you can use plywood or anything flat. If you are flattening several 
jackets, separate them with paper towels or something. When dry, you can 
brush or wipe the jacket carefully. Replace the inner sleeve. The same 
process goes for record labels. I've used distilled white vinegar, full 
strength, on all types of record compounds without damage. Obviously, 
the record (because of the label), jacket and all will smell like 
vinegar afterwards. If you want to reduce the vinegar smell, sleeve the 
entire record (jacket and all) with a clear sleeve that has a flap. This 
is a good idea anyhow to keep any future regrowth from migrating.

FWIW, white vinegar will kill the roots of mold when the cardboard is 
saturated.

Cheers,

Corey

Corey Bailey Audio Engineering
www.baileyzone.net

On 10/12/2020 4:17 PM, Jeff Willens wrote:
> Hi Gary,
>
> What about diluted white vinegar if it's a commercial vinyl record? Then a careful rinse.
>
> Jeff
>
>
>
>
> On Mon, 12 Oct 2020 00:44:22 +0000, Gary A. Galo <[log in to unmask]> wrote:
>
>> No, this is a commercial vinyl LP record.
>>
>> Best,
>> Gary
>>
>> -----Original Message-----
>> From: Association for Recorded Sound Discussion List <[log in to unmask]> On Behalf Of Paul Stamler
>> Sent: Sunday, October 11, 2020 7:48 PM
>> To: [log in to unmask]
>> Subject: [EXTERNAL] Re: [ARSCLIST] Plastic sleeves leeching
>>
>> This message did not originate from SUNY Potsdam or one of its trusted senders. Do not open attachments, click on links, or provide your credentials if the source is suspicious.
>>
>>
>> On 10/11/2020 5:52 PM, Mickey Clark wrote:
>>> Gary-Alcohol (99%) is safe to try on vinyl - but never on
>>> shellac-Mickey
>> If this is a one-pf-a-kind (instantaneous) recording, it's probably not vinyl; it mat be acetate. I wouldn't go near it with alcohol of any sort.
>>
>> Yes, probably Irene is the safest bet.
>>
>> Peace,
>> Paul
>>
>>>
>>> Mickey Clark
>>> 710 Westminster Avenue West
>>> Penticton BC
>>> Canada
>>> 250-462-7881
>>> V2A 1K8
>>> http://mcproductions.ca
>>> 1-250-462-7881
>>>
>>> -----Original Message----- From: Gary A. Galo
>>> Sent: Sunday, October 11, 2020 3:14 PM
>>> To: [log in to unmask]
>>> Subject: [ARSCLIST] Plastic sleeves leeching
>>>
>>> Our school has a couple of LPs that were stored in plastic inner
>>> sleeves that leeched, leaving little balls of sticky gook on the vinyl surface.
>>> Has anyone had any luck cleaning vinyl records with this problem?
>>>
>>> Thanks,
>>> Gary
>>>
>>> Gary Galo
>>> Audio Engineer Emeritus
>>> The Crane School of Music
>>> SUNY at Potsdam, NY 13676
>>>
>>> "Great art presupposes the alert mind of the educated listener."
>>> Arnold Schoenberg
>>>
>>> "A true artist doesn't want to be admired, he wants to be believed."
>>> Igor Markevitch
>>>
>>> "If you design an audio system based on the premise that nothing is
>>> audible, on that system nothing will be audible."
>>> G. Galo
>> ---
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