Hello all,

Our library's exhibits invariably incorporate informational panels, ranging
in size fro 24" x 36" to 48" x 72", digitally printed and mounted to
foamcore. These mounted panels get hung within wall cases, or via chain from
a hanging rail on walls. I've run up against a persistent problem with some
batches of foamcore exhibiting notable warping and bowing (depending on the
season as well). If indeed similar panels are being used by you all in your
exhibits: By what methods, or with which products, can these panels be kept
rigid and flat, minimizing or even eliminating the bowing?

The most obvious answer is putting the panels within oversize picture
frames, but this results in... well, a distracting frame around the panel's
graphics. Experiments with adhering unglassed picture frames to the backs of
the foamcore panels have been less than successful. As we've no fabrication
facilities on the premises, I've not been able to make wooden frames or
supports.

Is it simply a question of opting for the much-more-expensive Sintra or
another material that isn't as warp-prone?


Phil Raino
Exhibits Developer, Special Collections Research Center
The Estelle and Melvin Gelman Library
George Washington University

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