Volume 20, Number 4-5
Note: Suppliers should send their news and samples to the
column editor, Elizabeth Morse. She is Assistant Conservator,
Harvard University Library, Conservation Laboratory, Holyoke Center
Room 847, Cambridge, MA 02138 (617/495-8596, fax 617/496-8344).
Since she has been away recently, this column has been compiled
from the literature.
Description or mention of products or services in this column
should not be taken as an endorsement.
- In the July Picture Framing Magazine, Hugh Phibbs
describes a way of making two-pound weights that are cheap, dense,
compact and easily handled, by gluing together a mass of tiny
lead shot inside a form of two-ply board. The shape he recommends
is trapezoidal in cross section, with the broader surface on top,
to make it easier to pick up. The glue can be a thermoplastic
one or a synthetic emulsion.
- An English supplier for isinglass is James Vickers, Dallow
Works, Dallow Street, Burton Upon Trent, Staffordshire DE14 2PQ,
UK. Contact person is Michael Grace (ph: +44 1283 563 268, fax
+44 1283 511 472). Isinglass is used mainly in painting conservation
for consolidation of flaking and blistering paint, according to
Sally Outhwaite's note in the AICCM National Newsletter
for March 1996. She mentions an article in the JAIC
for spring 1993, on pages 23-31, which gives a good background
for the use of isinglass. It costs £63 per pound.
- Museum Services Corporation has four pieces of equipment for
A book and document leafcaster with digitizer for calculating
the area to be filled,
A fold and edge caster, for leafcasting only part of a page
A polyester sealer, and
book suction machine, which makes it unnecessary to disbind a
book in order to mend or use solvents on part of a single page.
For paper conservation, they have cold suction tables, the Weidner
moisture chamber, a table mount suction device, a nearly flat
manuscript suction device (a.k.a. the Stealth Sucker), a steam
cleaner and a steamer, a light table and Nilfisk GS80 vacuum cleaners.
They also have supplies and a number of more generally useful
tools and kinds of equipment. Contact them at 1107 East Cliff
Rd., Burnsville, MN 55337-1514 (612/895-5199 or 800/672-1107;
fax 612/895-5298; e-mail
- People often ask how safe glue sticks are. Since there are
many brands, and the formulations are likely to change without
notice, it is hard to generalize. Individual brands have been
tested to answer specific questions, but there has been no research
that applies to all glue sticks. However, there was a short discussion
of them on the Conservation DistList earlier this month, in which
people shared their experience and observations.
- In summary, glue sticks were said to be safer because they
were less acidic, though some might be questionable in terms of
reversibility. Also, all of them were said to harden up to the
consistency of candy or shellac; wheat or rice starch paste was
recommended instead. Another person recommended using a plastic
syringe filled with "the adhesive of your choice."
They are as convenient as a glue stick and will keep the adhesive
from drying out for as long as a year; a source is The Woodworkers'
Store, 21801 Industrial Boulevard, Rogers, MN 55374-9514 (800/279-4441).
- Jane Down's message said that CCI had analyzed three types
of glue sticks in 1982 and found that they were all composed of
poly(vinyl pyrrolidone) and had a pH of 9. The pH might be a
problem with alkaline sensitive items. Labels glued 10 years
ago peel extremely easily today, and photographs glued at the
same time lost their gloss in areas where the adhesive was on
- A query on the DistList about sources of Japanese paper early
in June brought a torrent of replies, identifying Paper NAO, Hiromi,
BookMakers and Aiko's, two of which, by the way, are in the Guild
of Book Workers' 1992 Supply Directory. In addition,
the Directory names Bookbinder's Warehouse, Falkiner
Fine Papers Limited, Johnson Bookbinding Supply Co., The Preservation
Emporium and Sanpho Corporation.
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