[Nhcoll-l] Vitrine Seam Failure

[Rebecca Newberry]

 You may also want to check the case interiors for wooden decks or plinths that swell in high humidity. We have had case decks swell and crack acrylic seams.Best,Rebecca NewberryScience Museum of Minnesota
    On Friday, October 21, 2022 at 03:22:09 PM CDT, Peter A Rauch <peterar at berkeley.edu> wrote:  
 
 Heidi,Distinguishing between those which failed and those which haven't (yet), it might help to know...:
Are they of recent or old manufacture?One supplier/manufacturer, or several?
Large, or small?Settled on perfectly plane (not necessarily level) stands, bases, tables, floors, ...?
Peter R.

On Fri, Oct 21, 2022 at 10:05 AM Heidi Mead <heidi.mead at gcsu.edu> wrote:


Good morning all,

 

I am wondering if any of you might have some insight into why our expensive vitrines might have suddenly popped open at the seams.

Our housekeeping methods for cleaning cases only involves a very lightly dampened cloth (distilled water). There is no crazing.

12 out of our 20 vitrines are exhibiting gaping at the sides, top, base, or all seams. There does not appear to be any one pattern. All cases are in the same room, some along walls, some centrally located. We do use a data logger and I am hoping that will provide some clues, but I would truly appreciate any thoughts any of you might have.  

 

Thank you for whatever help you might have for us.

Heidi

Heidi F. Mead

FOSSIL PREPARATION

WILLIAM P. WALL MUSEUM OF NATURAL HISTORY

BIOLOGICAL & ENVIRONMENTAL SCIENCES

GEORGIA COLLEGE

102 Herty Hall

478-445-2395

Heidi.mead at gcsu.edu

She/Her/Hers


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