To add to Paul's great advice:

You might try Triton X-100 if Photo-Flo is hard to find. It is available 
at Amazon, for example, & only use a drop or two per gallon as the stuff 
is a detergent & very potent. I use the solution as a rinse & use 
products from The Disc Doctor for cleaning. You might check with them to 
see if their products are appropriate for your application.

Be safe,


Corey Bailey Audio Engineering

On 1/14/2021 11:45 AM, Paul Stamler wrote:
> On 1/14/2021 10:40 AM, Karl Miller wrote:
>> Do any of you know what sort of fluid might be the best (safest) to 
>> clean
>> the discs.
> You're always safe with distilled or deionized water. You might add 
> some Kodak Photo-Flo to keep it from beading. Try 1 drop of Photo-Flo 
> in a liter (or quart) of water.
> Peace,
> Paul
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