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ARSCLIST  January 2016

ARSCLIST January 2016

Subject:

Re: Cleaning stylus

From:

Michael Gillman <[log in to unmask]>

Reply-To:

Association for Recorded Sound Discussion List <[log in to unmask]>

Date:

Tue, 19 Jan 2016 16:50:47 -0800

Content-Type:

text/plain

Parts/Attachments:

Parts/Attachments

text/plain (98 lines)

this should settle this entire argument.

https://www.youtube.com/watch?v=Egx7QzjvNBY

On Tue, Jan 19, 2016 at 11:00 AM, John Haley <[log in to unmask]> wrote:

> Sorry, I am not about to put ANY kind of chemicals on something as easily
> damaged as a vinyl record, or a precious acetate disc.  Plain warm water,
> patted dry with paper towels and allowed to dry is quite effective.  Not
> the same as a fancy machine, I am sure, but still quite effective in
> washing away grime and dirt.  In this case, low tech is the way to go, for
> me.
>
> Best,
> John Haley
>
>
>
> On Tue, Jan 19, 2016 at 1:33 PM, H D Goldman <[log in to unmask]>
> wrote:
>
> > Hi Clark,
> >
> > Photo-flo is classified as a “wetting agent” with “very little" activity,
> > at best, as a detergent.   We never found a good reason to include it in
> > any formulation.  But with the right RCM surely you can just suck
> > everything off ….  unfortunately that’s wishful thinking.
> >
> > It’s usually quite easy to demonstrate this with any RCM.  Clean a side
> > with your favorite wetting agent, play it twice & listen carefully on the
> > third play back.  Then repeat with the addition of a suitable water
> soluble
> > surfactant.
> >
> > If you feel the need, reverse the process.
> >
> > It’s an interesting observation that a number of KM owners I’ve talked
> > with seem to believe that the focused vacuum & just about any fluid will
> > do.  Unfortunately this simply is not the case.  It has been our
> experience
> > & that of our various testers that thorough cleaning with an effective
> > detergent was necessary for consistent, high quality cleaning which
> > includes removal of the mold-release agents.
> >
> >
> > www.thefreedictionary.com/wetting+agent
> > A substance that reduces the surface tension of water or another liquid,
> > causing the liquid to spread across or penetrate more easily the surface
> of
> > a solid.
> >
> > detergent:  a water-soluble cleansing agent that combines with impurities
> > and dirt to make them more soluble and differs from soap in not forming a
> > scum with the salts in hard water.  Some detergents have both properties
> to
> > varying degrees.
> >
> > We chose to use a mixture of a high purity surfactant blend coupled with
> a
> > small but critical amount of I-propanol.  The is not isopropyl alcohol.
> > Extensive evaluations confirmed the safety & effectiveness of this
> approach
> > which was further confirmed by listening evaluations over a period of
> years
> > from a larger number of interested testers.
> >
> > First the doubters claimed it was all BS & then they listened to the
> > results ….  then they said you could never use the same solution on
> vinyl &
> > shellac & they realized they were mistaken; ask the folks at LOC or a
> > variety of respected universities & archives; finally we demonstrated
> that
> > we could also thoroughly & safely clean Edison diamond discs.  If you
> want
> > confirmation call the Edison Historical Site as well as the remarks
> > volunteered by the head of Yale’s Historical Sound Archive at the ARSC
> > meeting in Nashville in the early 1990s.
> >
> > Regards,
> >
> > Duane Goldman
> >
> > H D Goldman Lagniappe Chemicals Ltd.
> > PO Box 37066 St. Louis, MO 63141 USA
> > v/f 314 205 1388  [log in to unmask]
> >
> >
> > On Jan 18, 2016, at 6:24 PM, Clark Johnsen <[log in to unmask]>
> wrote:
> > >
> > > Hi Duane.
> > >
> > > Aren't Photo-Flo and Dawn redundant?
> > >
> > > c
> >
>

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