Jade R

Christine Smith <consartpap [at] earthlink__net> writes

>Can anyone point me to information about Jade R adhesive, which is
>advertised as a water-reversible version of Jade 403 PVA? The only
>explanation which a vendor could provide for what makes Jade R
>reversible was its *formulation*, and I was told that the adhesive
>does not contain any additive(s) to make it reversible.  There was
>no information about the time period for which reversibility can be
>expected.   The vendor did not know of any studies about Jade R, and
>I found nothing via an Internet search.

I have a sample of Jade R that I painted out slightly over a year
ago and have kept in our conservation lab with some light exposure
but no UV component.  It remains quite sensitive to distilled water,
and I plan to keep it and continue to monitor it.  A colleague of
mine contacted Aabbitt Adhesives, the manufacturer of the Jade
adhesives, and was told that Jade R is: essentially modified
polyethylene, copolymerized with vinyl acetate, with some part of
the chain being vulnerable to surfactants or soaps in water,
designed for washable films on non-porous surfaces.

Kate Moomaw
Postgraduate Fellow in Conservation
Smithsonian Institution
Hirshhorn Museum and Sculpture Garden
MRC 354 PO Box 37012
Washington, DC 20013-7012
202-633-0199


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                  Conservation DistList Instance 24:47
                 Distributed: Wednesday, April 13, 2011
                       Message Id: cdl-24-47-002
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