Proprietary solvents

I got the following note recently.  I've already passed on to Ms Redmon
the party line on using proprietary products of unknown composition, and
the usual Stern Cautions, but if anyone does have any information about
the formulation of these products, I'm sure many of us will be
interested.

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    Date: 9 Jan 92
    From: Sherrill Redmon <SLREDM01%ULKYVM.BITNET [at] Forsythe__Stanford__EDU>
    Subject:

    Mr Henry, your name was given me as you'll note below. My question to
    the Archives network was about removing a pamphlet glued inside a rare
    book. By now it is academic. When I tried water and a microspatula, it
    came right off with no damage to either item. Still, the adhesive might
    not be water soluble next time. So here's the question: Does anyone use
    Peel or Lusenback (sp?) to loosen glued items? What are their
    compositions? Safe for paper? And if safe, does anyone know where they
    may be purchased?

    Here's what the label says:
    Hagaron Peel.  New Wonder Liquid.  Made in Japan. Exclusive
    Importer: Yasutomo & Co, San Francisco. Patent Pending.

    A colleague reports that she inherited Lusenback 15 years ago when a
    true neophyte to rare books custodianship. When it left a slight
    sticky sticky residue, she abandoned it and hasn't seen it since.

    Thanks a lot for any help you or your networkers can give us.

    --Sherrill
    588-6674

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                  Conservation DistList Instance 5:35
                Distributed: Saturday, January 11, 1992
                        Message Id: cdl-5-35-009
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