Re: [ARSCLIST] Cleaning lacquers. Was, Question Regarding the Preservation of Acetate Records

[Susan Stinson <Ststinso@xxxxxxx>]

That's our practice as well - cleaning only at the point when transfer
is imminent.  I should add, though, that lacquers which have been
cleaned and recorded, and looked at later on, do not appear to have been
adversely affected by the process.  I suppose the optimum plan still is
to transfer such material asap befire the surface ages to the point of
self-destruction.

Sue



Susan T Stinson, Curator
Belfer Audio Laboratory and Archive
Syracuse University Library
222 Waverly Avenue
Syracuse, NY 13244-2010
315-443-3477 / fax 443-4866


>>> goodlistening@xxxxxxxxx 11/23/2005 8:36 PM >>>
Do others clean lacquers you're not going to play immediately? LC
policy was
(and probably still is) not to clean exudation until playback. It was
thought that cleaning might accelerate the discs drying out.

Sam

On 11/22/05, Eric Jacobs <ericj@xxxxxxxxxxxxxxxxxxx> wrote:
>
> Bob,
>
> Your first line of defense is to digitize what you have ASAP - that
> particularly disk is in far too much danger of being lost
altogether.
>
> Your second line of defense is proper storage, which will
significantly
> slow down - but not stop - the deterioration.  Proper storage
includes
> removing any palmitic acid (only if possible without losing any
laminate),
> keeping the disc in a climate controlled space, with air
circulation,
> and keeping the disc in an acid-free envelope/sleeve.  Also - and I
> cannot emphasize this enough - handle the acetates with gloves.  The
> acid in finger prints will initiate palmitic acid formation.  Many
of
> the 16-inch acetates that I work with have finger prints dating back
> to when they were originally played on the air - and the PA that
forms
> on the finger prints, once removed, leaves an audible imprint.  PA
is
> autocatalytic (once formed, the deterioration accelerates) - so you
> definitely will want to clean and resleeve any of your discs with
PA,
> flaking or not.
>
>
> Eric Jacobs
>
> The Audio Archive
> tel: 408.221.2128
> fax: 408.549.9867
> mailto:EricJ@xxxxxxxxxxxxxxxxxxx 
>
>
>
> -----Original Message-----
> From: Association for Recorded Sound Discussion List
> [mailto:ARSCLIST@xxxxxxx]On Behalf Of Bob Conrad
> Sent: Monday, November 21, 2005 4:30 PM
> To: ARSCLIST@xxxxxxxxxxxx 
> Subject: [ARSCLIST] Question Regarding the Preservation of Acetate
> Records
>
>
> I have recently acquired a large collection of 16" radio broadcast
> acetate transcription discs dating from the late 1930s to the early
> 1940s. While most are in excellent + condition, there are a few
Sinatra
> broadcasts from 1943 that are beginning to flake around the edges.
Two
> of these disks are pretty bad and the flaking has actually reached
the
> grooves.
>
> Is there any possible way to stop these discs from flaking? Is there
a
> spray that can be applied, or any sort of technique that will save
these
> transcriptions from complete deterioration?
>
> Thanks for your help and assistance.
>
> Bob Conrad
> e-mail: bob618@xxxxxxxxx 
>