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<div dir="auto">Are these glass or plastic? If the latter, it sounds like poor bonding. The traditional medium for bonding acrylic sheet is chloroform, but lots of places don't use it any more for obvious reasons...</div>
<div dir="auto">PC </div>
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>From:</b> Nhcoll-l <nhcoll-l-bounces@mailman.yale.edu> on behalf of Heidi Mead <heidi.mead@gcsu.edu><br>
<b>Sent:</b> Friday, October 21, 2022 1:05:48 PM<br>
<b>To:</b> nhcoll-l@mailman.yale.edu <nhcoll-l@mailman.yale.edu><br>
<b>Subject:</b> [Nhcoll-l] Vitrine Seam Failure</font>
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<p class="x_MsoNormal">Good morning all,</p>
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<p class="x_MsoNormal">I am wondering if any of you might have some insight into why our expensive vitrines might have suddenly popped open at the seams.</p>
<p class="x_MsoNormal">Our housekeeping methods for cleaning cases only involves a very lightly dampened cloth (distilled water). There is no crazing.</p>
<p class="x_MsoNormal">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. </p>
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<p class="x_MsoNormal">Thank you for whatever help you might have for us.</p>
<p class="x_MsoNormal">Heidi</p>
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<p class="x_MsoNormal"><b><span style="font-size:13.0pt; color:#213315">Heidi F. Mead</span></b></p>
<p class="x_MsoNormal"><b><span style="font-size:12.0pt; font-family:"Bell MT",serif; color:#213315">FOSSIL PREPARATION</span></b></p>
<p class="x_MsoNormal"><span style="font-size:12.0pt; font-family:"Bell MT",serif; color:#213315">WILLIAM P. WALL MUSEUM OF NATURAL HISTORY</span></p>
<p class="x_MsoNormal"><span style="font-size:12.0pt; font-family:"Bell MT",serif; color:#213315">BIOLOGICAL & ENVIRONMENTAL SCIENCES</span></p>
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<p class="x_MsoNormal"><span style="color:#213315">478-445-2395</span></p>
<p class="x_MsoNormal"><a href="mailto:Heidi.mead@gcsu.edu"><span style="color:#0563C1">Heidi.mead@gcsu.edu</span></a><span style="color:#213315"></span></p>
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