[78-L] More on cleaning lacquers

[H D Goldman]

Hi Cary,

Sorry for mis-spelling your name.  In our hands, very low  
concentrations of aqueous Triton X-100 were both safe for use on  
lacquer discs & moderately effective cleaning agents.  Nonetheless,  
prior experience suggested that blending Triton X-100 with a carefully  
selected mixture of ionic surfactants should improve its performance &  
this proved to be the case.  As it turned out, minor adjustment of the  
favored vinyl formulation afforded a solution that proved to be both  
safe & a more effective cleaner than aqueous Triton X-100 alone, other  
commercially available record cleaning fluids or common diy recipes.   
23 years later we still think so.

We prefer an applicator that is more effective at agitating fluid in  
the groove & uses fluid in a more controlled fashion than standard  
issue paint brushes.

A drop is a somewhat vague quantity but even 1 drop as 1/10-1/20 mL in  
a pint, 454 mL, is a significantly higher concentration than we found  
needed to obtain good cleaning levels using on Triton X-100 in RO 
(reverse osmosis) filtered water.  Regardless, "a drop or 2" should  
not be harmful.  If residual surfactant remains after vacuuming, a  
water rinse should suffice.

We've chosen ingredients based upon safety, effectiveness,  
availability & the ability to rinse free from the surface being  
cleaned.  There was never a need to restrict potential materials past  
these criteria.

Regards,

Duane Goldman



On Oct 4, 2009, at 11:43 AM, Cary Ginell wrote:

>
> The dlituion I will be using is a few drops for a pint of distilled  
> water.  Is that safe enough? And if it is effective at high  
> dilution, does that not make the cleaning process even less  
> expensive? If it is effective, why was it necessary to develop  
> alternatives?
>
> And the name is Cary, not Gary.
>
> Cary Ginell
>
>> From: thedoctor at discdoc.com
>> Date: Sun, 4 Oct 2009 11:14:14 -0500
>> To: 78-l at klickitat.78online.com
>> Subject: Re: [78-L] More on cleaning lacquers
>>
>> Hi Gary,
>>
>> Had we found water/Triton X-100 mixtures alone & a paint brush to
>> afford safe & thorough cleaning of lacquers &/or acetates or shellacs
>> discs for that matter, we would not have made an effort to develop
>> alternatives.
>>
>> Be careful when using non-ionic surfactants as they are only  
>> effective
>> when used at very high dilution. More is not better.
>>
>> Cheers,
>>
>> Duane Goldman
>>
>> On Oct 4, 2009, at 9:42 AM, Cary Ginell wrote:
>>
>>>
>>> My father, who is a chemist and retired conservation scientist for
>>> the Getty Institute, recommended a cleaning solution to use on
>>> lacquer reference discs. He recommends a diluted solution of
>>> distilled water and Triton X-100, which is the brand name for Octyl
>>> Phenoxy Polyethoxyethanol. He recommends applying it with a thin
>>> paint brush, which treats the grooves gently and won't leave any
>>> lint. Don't know if anyone is familiar with this method or not, but
>>> I'm going to give it a try.
>>>
>>> Cary Ginell
>>
>> H D Goldman Lagniappe Chemicals Ltd.
>> PO Box 37066 St. Louis, MO 63141 USA
>> v/f 314 205 1388 thedoctor at discdoc.com
>>
>>
>>
>>
>>
>>
>>
>>
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H D Goldman Lagniappe Chemicals Ltd.
PO Box 37066 St. Louis, MO 63141 USA
v/f 314 205 1388 thedoctor at discdoc.com