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<p class="MsoNormal">Paul,<o:p></o:p></p>
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<p class="MsoNormal">Andy Bentley and I both recently purchased new gaskets from the Potomac Rubber Company at the recommendation of Kris Murphy at the Smithsonian. I have been very happy with these gaskets so far. They fit slightly differently than the original
gaskets do, and I suspect that they may not be as tolerant of large swings in temperature/pressure as the original gaskets.
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<p class="MsoNormal">Bryon Ciotti <a href="mailto:bc@potomacrubber.com">bc@potomacrubber.com</a> at Potomac Rubber is our contact and was great to work with. They will send you samples to test if you request it. There’s a special museum rate. Item PWB094332
fits Le Parfait jars from .5L to 2L, and item PWB093627 is for 3L Le Parfaits. I’m not sure what size would fit your Ball Jars, but I’m sure they make one.
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<p class="MsoNormal">There’s a local supplier in Philly called PhillyRubber, but they couldn’t compete on the price with Potomac.
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<p class="MsoNormal">Best,<o:p></o:p></p>
<p class="MsoNormal">Nate<o:p></o:p></p>
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<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:#333333;background:white">-<br>
</span><b><span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:#BB0000;background:white">Nathaniel F. Shoobs, </span></b><span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:#333333;background:white">Curator of Mollusks</span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:#BB0000;background:white">College of Arts & Sciences </span><span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:#333333;background:white">Dept. of Evolution,
Ecology, and Organismal Biology, The Ohio State University<br>
Museum of Biological Diversity</span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:#333333;background:white">1315 Kinnear Rd, Columbus, OH 43212<br>
614-688-1342 (Office)<br>
<a href="http://mbd.osu.edu/"><span style="color:#0563C1">mbd.osu.edu</span></a></span><o:p></o:p></p>
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<p class="MsoNormal"><b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:black">From:</span></b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:black"> Nhcoll-l <nhcoll-l-bounces@mailman.yale.edu> on behalf of Callomon,Paul
<prc44@drexel.edu><br>
<b>Sent:</b> Tuesday, October 21, 2025 1:10:33 PM<br>
<b>To:</b> NH-COLL listserv (nhcoll-l@mailman.yale.edu) <nhcoll-l@mailman.yale.edu><br>
<b>Subject:</b> [Nhcoll-l] Le Parfait gaskets</span> <o:p></o:p></p>
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<p class="MsoNormal"> <o:p></o:p></p>
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<p class="MsoNormal" style="mso-line-height-alt:.75pt"><span style="font-size:1.0pt;color:white;display:none">I think this one’s been addressed, but can anyone chime in on using standard Le Parfait gaskets with ethanol? If there’s some issue, can one get e.
g. neoprene substitutes? For context, we have 70-year-old Ball gaskets that are rock<o:p></o:p></span></p>
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<p class="xmsonormal">I think this one’s been addressed, but can anyone chime in on using standard Le Parfait gaskets with ethanol? If there’s some issue, can one get e. g. neoprene substitutes?</p>
<p class="xmsonormal">For context, we have 70-year-old Ball gaskets that are rock hard but still holding. Of course, we replace them if we have to open the jar, but otherwise they are very reliable.
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<p class="xmsonormal"><b><span style="font-size:10.0pt;font-family:"Tahoma",sans-serif;color:black">Paul Callomon</span></b><span style="font-size:10.0pt;font-family:"Tahoma",sans-serif;color:black"><br>
<i>Collection Manager, Malacology and General Invertebrates</i></span></p>
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<p class="xmsonormal"><b><span style="font-size:10.0pt;font-family:"Verdana",sans-serif;color:black">Academy of Natural Sciences of Drexel University, Philadelphia</span></b><span style="font-size:10.0pt;font-family:"Tahoma",sans-serif;color:black"><br>
<i><a href="mailto:callomon@ansp.org">callomon@ansp.org</a> Tel 215-405-5096 - Fax 215-299-1170</i></span></p>
<p class="xmsonormal"><b><span style="font-size:10.0pt;font-family:"Tahoma",sans-serif;color:#45B0E1">President of the American Malacological Society for 2027</span></b></p>
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