Re: [ARSCLIST] If I knew you were coming I'd've baked a tape...

["H. Duane Goldman" <thedoctor@xxxxxxxxxxx>]

Hi Richard,

1-Propanol [aka n-propanol is the least aggressive of the simple water
soluble mono alcohols[the others being methanol, ethanol & iso-propanol]
toward plastics & rubbers.  It has a boiling point just below water & a
slightly oily feel when rubbed between the fingers.  It is its combination
of water like & lipid like properties that makes it an important component
of our record cleaning fluids.

We've used neat pure 1-propanol for decades to clean tape recorder pinch
rollers & heads with excellent results.  Because minor impurities in lesser
grades of 1-propanol have a potential for harm, I never use any grade of
this solvent below.A.C.S. reagent grade, 99.5%.  While not expensive when
purchased from appropriate sources in volume, pints [the smallest container
generally available] is not cheap, esp. when purchased from chemical supply
houses by people without existing accounts.

I can supply 10 mL samples if you'd like to try this solvent.

Regards,

Duane Goldman

At 03:02 PM 1/10/2005 -0500, you wrote:
> Hi, Duane,
>
> Could you please enlighten us as to why? As you gathered, it's being used
> as a temporary lubricant to get it to play. Once.
>
> What might be better substitutes that don't gum up machines and don't
> create capstan slippage?
>
> Thanks!
>
> Richard
>
> At 01:39 PM 1/10/2005 -0600, you wrote:
> > Hi Marie,
> >
> > I think you will find the use of very pure normal propyl alcohol [aka
> > 1-propanol] to be better in this application.
> >
> > Regards,
> >
> > Duane Goldman
> >
> >
> > At 01:35 PM 1/10/2005 -0500, you wrote:
> > > Hi, Marie,
> > >
> > > Please tell more! You did this and the Dragon didn't bite your head off or
> > > breathe fire or whatever Dragons do when they get upset? How do you keep it
> > > out of the mechanism?
> > >
> > > Thanks!
> > >
> > > Richard
> > >
> > > At 11:53 AM 1/10/2005 -0600, you wrote:
> > > > Hi Richard
> > > >
> > > > I have had some success using ISO on cassette tape, I call it the
> > > > "eye-dropper
> > > > technique"!  Has worked each time for me when I had needed to use
> > > > it.  This is a
> > > > very crude version of my intravenous drip bag!
> > > >
> > > > Cheers
> > > >
> > > > Marie O'Connell
> > > > Sound Archivist
> > > > Mississippi Department Of Archives & History
> > > > 200 North Street
> > > > Jackson, MS, 39201
> > > > Ph: 601-576-6909
> > > >
> > > > "Richard L. Hess" wrote:
> > > >
> > > > > At 12:15 AM 1/9/2005 -0500, Steven C. Barr wrote:
> > > > > >----- Original Message -----
> > > > > >From: "Richard L. Hess" <ArcLists@xxxxxxxxxxxxxxx>
> > > > > > > I would also caution that this writer's experience with cassette
> > > > tapes and
> > > > > > > baking is that most squealing cassette tapes appear to be suffering
> > > > from
> > > > > > > loss-of-lubricant (LoL) rather than the more common Sticky Shed
> > > > Syndrome
> > > > > > > (SSS) that afflicts reel tapes.
> > > > > > > While LoL can affect reel tapes (I've seen it in Sony tape from the
> > > > > >1970s),
> > > > > > > SSS is more common. I have not actually seen a proven case of SSS in
> > > > > > > cassettes, while I have seen several instances of LoL. In fact, I
> > > > just did
> > > > > > > an Ampex air-check cassette from the early 80s for a client that
> > > > was LoL.
> > > > > >I
> > > > > > > was pretty sure, being Ampex, it would be SSS, but I was
> > > > disappointed.
> > > > > >Quick question...how does one lubricate a noisy cassette? I suspect
> > > > that
> > > > > >neither 3-In-1 or WD-40 would be advisable...
> > > > >
> > > > > Steven,
> > > > >
> > > > > There are several approaches, but http://www.lastfactory.com/ makes
> > > > > commercially available tape head and tape lubricants that I use for the
> > > > > purpose. In many LoL situations they need to be applied frequently. I'm
> > > > > also using some experimental fluids that are more successful and
> > > > > experimenting with other alternatives.
> > > > >
> > > > > Reel tapes with LoL are sometimes playable with an Isopropyl "Drip"
> > > > which
> > > > > Marie O'Connell had great success with in New Zealand and now in
> > > > > Mississippi. I think this has been discussed here at length. I haven't
> > > > used
> > > > > Isopropyl on cassettes yet because I haven't figured a way to do it
> > > > without
> > > > > annoying a Dragon and you know how ornery an annoyed Dragon can be!
> > > > >
> > > > > Cheers,
> > > > >
> > > > > Richard
> >
> >      ------
> > h. duane goldman, ph.d.   |   P.O. Box 37066   St. Louis, MO  63141
> > lagniappe chem. ltd.            |   (314) 205 1388 voice/fax
> > "for the sound you thought you bought"       |   http://discdoc.com

     ------
h. duane goldman, ph.d.   |   P.O. Box 37066   St. Louis, MO  63141
lagniappe chem. ltd.            |   (314) 205 1388 voice/fax
"for the sound you thought you bought"       |   http://discdoc.com