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Well, the audograph discs are solid vinyl, so the risks are minimal. Never
really worked with embossed belts, our collection had magnabelts. True
dictabelts are acetate, so water would risk catalyzing vinegar syndrome.

On Sat, Jan 16, 2021, 9:49 AM Jeff Willens <[log in to unmask]> wrote:

> Hi Steve,
>
> Did you find any short- or long-term after-effects from this process? Any
> curling after the bath? Any deterioration over time?
>
> I’m wondering if that process could work on other embossed media, such as
> Dictabelts or flexi-discs from the 70s?
>
> Jeff Willens
> Media Preservation Engineer, Audio
> New York Public Library
>
>
>
> On Fri, 15 Jan 2021 08:45:40 -0500, Steve Greene <[log in to unmask]>
> wrote:
>
> >I did this several years ago. I used photo print developing trays,
> >deionized water, and a mild non-ionic surfactant like Kodak's Photo-flo.
> >After about thirty minutes of soaking, I gently brushed the grooves (while
> >still in the cleaning solution) with a sable brush. Fingerprint oils
> lifted
> >off like scabs. Air dried on lint-free paper.
> >
> >Steve Greene
> >(301) 842-8923
> >historicity.co
> >An independent archival professional specializing in still photography,
> >moving images and recorded sound.
> >
> >
> >On Fri, Jan 15, 2021 at 8:42 AM Stewart Adam <
> [log in to unmask]>
> >wrote:
> >
> >> Hello,
> >>
> >> I have been thinking of using an ultrasonic cleaner to clean Audograph
> >> discs and looking for suggestions on what type of solution/cleaner to
> use.
> >>
> >> Thank you in advance.
> >>
> >> Stewart Adam
> >> Creative Audio Works
> >> [log in to unmask]
> >>
>