[78-L] Cleaning Aluminum Discs

[David Lennick]

I say just use Ajax and steel wool and show the sonofabitch who's boss.

dl

On 9/3/2010 5:23 PM, Doug Pomeroy wrote:
> Hi Kevin,
>
> I know of no studies of the best means of cleaning recorded,
> uncoated aluminum discs.
>
> There are many aluminum cleaners on the market (popular with motorcycle
> owners), and the strong ones will actually etch the surface, which is
> obviously to be avoided.
>
> The active ingredient in Noxon is ammonia, and I have seen no evidence
> of damage from using it to polish the discs.  It only removes surface
> tarnish,
> and I believe the particles of tarnish are infinitesimally small
> compared with
> the size of the recorded groove, so there is no degradation of the
> audio.
>
> A brush which really gets the Noxon into the grooves removes tarnish
> from the groove walls, and in my experience this results is a slight
> reduction
> in surface noise.
>
> Corrosion is another matter.  I use an old tooth brush with Noxon to
> help
> remove all the loose material.
>
> Good luck
>
> Doug Pomeroy
> POMEROY AUDIO
> Audio Restoration&  Mastering Services
> Transfers of metal masters, lacquers,
> shellac and vinyl discs&  tapes.
> 193 Baltic St
> Brooklyn, NY 11201-6173
> (718) 855-2650
> audiofixer at verizon.net
> ===============================================
>
>> Message: 22
>> Date: Sun, 29 Aug 2010 23:31:01 -0700
>> From: "Kevin P. Mostyn"<lists at mostyn.com>
>> Subject: [78-L] Cleaning Aluminum Discs
>> To:<78-l at klickitat.78online.com>
>> Message-ID:<98D3C716EE0E46E2937969A609475F00 at KPME6400>
>> Content-Type: text/plain;	charset="us-ascii"
>>
>> Bare naked aluminum, that is.
>>
>> Recently Mike Biel made an oblique reference to a previous
>> discussion on
>> this list about cleaning aluminum discs. Does anyone remember the
>> approximate date of the thread? I would like to read it but the list
>> archives do not appear to be indexed.
>>
>> I watched the N.Y. Times video regarding Doug Pomeroy's work on that
>> recently discovered jazz collection, which included some aluminum
>> discs. I
>> noted with interest what appeared to be a container of Noxon. Is
>> this a
>> recommended treatment for said discs?
>>
>> Thanks for any help.
>>
>> --Kevin Mostyn
> _______________________________________________