[78-L] Edison Diamond Discs - Need Cleaning Advice

[Malcolm Rockwell]

No to cheap vodka - too much water in it. 80 proof would be about 60% 
water! Use Everclear (200 proof ethyl) if you can buy it in your state, 
if not a good pharmacy will sell you 100% methyl, but you will probably 
have to ask the pharmacist.
Mal

*******

On 10/23/2010 3:17 PM, Dan Van Landingham wrote:
> I've tried Windex and it trashed the surface of the records and the one record
> cleaner I tried was just as
> bad.If ethyl alcohol works,what about a cheap vodka?I prefer gin but I save that
> for myself.I'm not a
> vodka fan.
>
>
>
>
> ________________________________
> From: Ron L'Herault<lherault at bu.edu>
> To: 78-L Mail List<78-l at klickitat.78online.com>
> Sent: Sat, October 23, 2010 5:59:29 PM
> Subject: Re: [78-L] Edison Diamond Discs - Need Cleaning Advice
>
> I've put Windex on a DD runout and waited.  I did not see any surface change
> on a macro level.  I did not do microscopy.
>
> Ron L
>
> -----Original Message-----
> From: 78-l-bounces at klickitat.78online.com
> [mailto:78-l-bounces at klickitat.78online.com] On Behalf Of Philip Carli
> Sent: Saturday, October 23, 2010 7:04 PM
> To: 78-L Mail List
> Subject: Re: [78-L] Edison Diamond Discs - Need Cleaning Advice
>
> Except DDs have no shellac, but are laminated with phenolic resin --
> plastic.  Has anyone investigated in detail the effects of Windex (or other
> glass cleaners) on it?  Alcohol (as Edison literature originally
> recommended) only works on records that have been reasonably well kept (as
> Edison lit originally assumed), at least in my experience.  Heavy grime and
> grease seem to resist alcohol remarkably well.
> ________________________________________
> From: 78-l-bounces at klickitat.78online.com
> [78-l-bounces at klickitat.78online.com] On Behalf Of Malcolm Rockwell
> [malcolm at 78data.com]
> Sent: Saturday, October 23, 2010 1:13 PM
> To: 78-L Mail List
> Subject: Re: [78-L] Edison Diamond Discs - Need Cleaning Advice
>
> Alcohol, the purer the better. I use methyl, but isopropyl or Everclear
> (ethyl - the kind you can drink) will do just as well. As long as the
> purtity approaches 100% (200 proof).
> Rubbing alcohol and denatured alcohol both contain water which will be
> left after the alcohol has evaporated, and that will never do.
> Windex is no good for shellac, period.
> Mal
>
> *******
>
> On 10/23/2010 7:06 AM, Dave at Audio Tech Transfer wrote:
>> Greetings,
>>
>> I have about 100 Edison Diamond Discs, ranging from fairly clean to
> filthy.  I've done some research on the web and find conflicting advice and
> opinions (although virtually everyone cautions against using water):
>> -Denatured alcohol
>> -Rubbing alcohol
>> -Windex
>> -NO alcohol!
>>
>> So, I'm confused.  What to do?  Some of the discs need nothing more than a
> dust-off with a carbon fibre brush.  Others will need aggressive cleaning.
>> Suggestions?
>>
>> Thanks,
>> Dave "Cactus Cowboy"
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