Apologies for the delayed reply.
During the early 1990
Apologies for the delayed reply.
During the early 1990’s, I experimented with various chemicals and
off-the-shelf products looking for the holy grail of lubricants for analog tape
and magnetic film suffering from binder hydrolyses and other forms of degradation.
I’ve never used D5. I’ve only had some discussions with Richard Hess about this
particular chemical. However, my concerns are; according to the MSDS, D5 should
be limited to an exposure level of 50ppm (Parts per Million) and Richard uses
this stuff at full strength. The MSDS also recommends vented eye protection,
respirator, etc. I can send you the MSDS off list if you are interested. My
other concern with D5 is the possible effects on the oxide for long term
storage. Richard Hess discovered D5 for use as a lubricant for magnetic media and is the resident authority on its use.
Marie O'Connell's method works. I tried something similar during my 1990’s experiments
and had good results. My experimental method consisted of applying the IPA with
a large eye dropper directly onto the tape oxide while in play mode. The erase and record
heads acted as a squeegee and problem tapes played surprisingly well. My
concern at the time was the amount of IPA that was getting into the electronics.
Marie has modified her machines so that the IPA is contained. IPA is not harmful to tape oxide and since it evaporates completely, there should be no adverse effects on long term storage. Marie would be the authority here on observed long term effects, if any.
What I use is Last factory lubricants: https://www.lastfactory.com/
This lubricant is safe to handle (MSDS is available) and has
no long term consequences that I have been able to discover. According to the
company, their lubricants will enhance the shelf life of analog tape. I have
used it on hundreds of analog tapes and magnetic film elements with great
success (about 95%). According to Walt Davies at Last Factory, I was the first
to try their product on magnetic film.
This stuff is expensive and if you have a large collection
or do a large volume of tape transfers, it could get costly. I simply build it
into the cost of doing business.
Some other products I’ve tried with success:
This is a lubricant designed to lubricate film for use in
projectors. It can be aggressive on oxide if used excessively. I’m not sure if
Zecote is still available.
Also a lubricant designed to lubricate film for use in
projectors however, it is touted as safe for magnetic oxide. My findings have
been that it works well and has no immediate adverse effects. It does leave a
residue on the oxide which makes me wary of its long term effects on stored
Organic, works well, easily available, but like the others,
leaves a film that may be harmful for long term storage.
Corey Bailey Audio Engineering
From: Jeff Brown <[log in to unmask]>
To: [log in to unmask]
Sent: Tuesday, October 9, 2012 10:13 AM
Subject: Re: [ARSCLIST] Source for D5 - decamethylcyclopentasiloxane
What are the advantages/disadvantages of working with D5 versus
working with an isopropyl alcohol drip like Marie O'Connell did?
At 10:42 AM 10/9/2012, you wrote:
>After much research I found a reasonable source for D5 here in
>Canada and they will ship to the U.S.A.
>You may find the info at the top of my blog page at the moment.
>or go directly there
>I know I have been discussing this off-list with a few of you.
>There is also another blog post a couple of articles down about it
>working very well with Sony PR-150 on a Sony APR-5003 recorder with
>a simplified applicator using an envelope moistener found at many
>major stationary suppliers.
>And, for something completely different, I have updated my article
>about my personal image scanning work, celebrating the completion of
>the bulk of it.
>but all three of these are currently the top three articles on the
>blog (on my blog they sort by last-edited date so updated articles
>are recycled on the main page).
>Richard L. Hess email: [log in to unmask]
>Aurora, Ontario, Canada (905) 713 6733 1-877-TAPE-FIX
>Quality tape transfers -- even from hard-to-play tapes.
>No virus found in this message.
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