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<div class="moz-cite-prefix">Hi Laura,</div>
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<div class="moz-cite-prefix">the 3 mm gap between the lid and the neck of the jar is not the problem, unless the stopper itself fits nicely into the joint and the contact surfaces / diameters of the neck-joint and the stopper fit (i.e. the stopper would not
wobble in the joint). Even then, you could use slightly more Alsirol to fit the stopper in the slightly wider opening, because the Alsirol - compared e.g. to Vaseline, is rather stable and would not start flowing down.</div>
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<div class="moz-cite-prefix">Silicon and other sealants like putty are hard to remove and not so easily "reversible". The contact surface of the joint should be long enough to make a good closure, an additional gasket is not required in my view.</div>
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<div class="moz-cite-prefix">Hope this helps,</div>
<div class="moz-cite-prefix">with best wishes</div>
<div class="moz-cite-prefix">Dirk<br>
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<div class="moz-cite-prefix">Am 05.02.2024 um 18:57 schrieb Callomon,Paul:<br>
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<blockquote type="cite" cite="mid:BL0PR01MB522090BC98F54EF0DEFB0B29C3472@BL0PR01MB5220.prod.exchangelabs.com">
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<div class="elementToProof" style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 11pt; color: rgb(0, 0, 0);">
Hi Laura,</div>
<div class="elementToProof" style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 11pt; color: rgb(0, 0, 0);">
<br>
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<div class="elementToProof"><span style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 11pt; color: rgb(0, 0, 0);">Those look like Whittall-Tatum jars, made here in Philadelphia. We have them in our
collection. </span><span style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 14.6667px; color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);">We have successfully sealed these jars with silicon
caulk in the past, but certain of its curing products - such as acetic acid - could affect the fluid.
</span><span style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 11pt; color: rgb(0, 0, 0);">One material that has been used to cut gaskets is neoprene, and butyl rubber sheet might also be fine, especially
if you thinly coat both glass faces with non-setting vacuum grease. If you do use caulk, use very little pressure on the clamp as without a gasket you could crack the lid through overtightening or even temperature changes. </span></div>
<div class="elementToProof"><span style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 11pt; color: rgb(0, 0, 0);"><br>
</span></div>
<div class="elementToProof"><span style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 11pt; color: rgb(0, 0, 0);">Our iconic Walter the Octopus is in a large 25-gallon WT jar whose lid is stuck on with
silicon (no clamp could be found) and it's held for 23 years so far. </span></div>
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<p><span style="font-family: Tahoma, sans-serif; font-size: 10pt; color: black;"><b>Paul Callomon</b></span></p>
<p><span style="font-family: Tahoma, sans-serif; font-size: 10pt; color: black;"><i>Collection Manager, Malacology and General Invertebrates</i></span></p>
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<p><span style="font-family: Verdana, sans-serif; font-size: 10pt; color: black;"><b>Academy of Natural Sciences of Drexel University, Philadelphia</b></span><span style="font-family: Tahoma, sans-serif; font-size: 10pt; color: black;"><br>
<i><a href="mailto:callomon@ansp.org" style="margin-top: 0px; margin-bottom: 0px;" moz-do-not-send="true" class="moz-txt-link-freetext">callomon@ansp.org</a> Tel 215-405-5096 - Fax 215-299-1170</i></span></p>
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<div id="divRplyFwdMsg" dir="ltr"><font style="font-size:11pt" face="Calibri, sans-serif" color="#000000"><b>From:</b> Nhcoll-l
<a class="moz-txt-link-rfc2396E" href="mailto:nhcoll-l-bounces@mailman.yale.edu">
<nhcoll-l-bounces@mailman.yale.edu></a> on behalf of Laura Rincón <a class="moz-txt-link-rfc2396E" href="mailto:collectionslitclub@gmail.com">
<collectionslitclub@gmail.com></a><br>
<b>Sent:</b> Monday, February 5, 2024 12:19 PM<br>
<b>To:</b> <a class="moz-txt-link-abbreviated" href="mailto:nhcoll-l@mailman.yale.edu">
nhcoll-l@mailman.yale.edu</a> <a class="moz-txt-link-rfc2396E" href="mailto:nhcoll-l@mailman.yale.edu">
<nhcoll-l@mailman.yale.edu></a><br>
<b>Subject:</b> [Nhcoll-l] Historic jars gasket</font>
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<div dir="ltr">Hello everybody,
<div><br>
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<div>I've been reading some thread emails about sealants in historic jars, but I can't find what the best way to close these jars is (see photos attached). I was planning to get Alsirol, but then I realized that there is a 3 mm. space between the rim and lid.
The "best" will be a gasket, but I'm not sure if there are proper gaskets for these jars.</div>
<div><br>
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<div>I would appreciate your recommendations or advice.</div>
<div><br>
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<div>Thanks,<br clear="all">
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