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BTW - If you use vacuum grease (what we have used for 40 years) it can be quite difficult to clean off of the glass surfaces should the need arise. For those times when one wishes to clean the jar completely and reseal, I have found mineral oil is helpful,
followed by a scrubbing with "Alconox." </div>
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" color="#000000" style="font-size:11pt"><b>From:</b> Nhcoll-l <nhcoll-l-bounces@mailman.yale.edu> on behalf of Callomon,Paul <prc44@drexel.edu><br>
<b>Sent:</b> Thursday, February 27, 2020 10:47 AM<br>
<b>To:</b> Esther Dondorp <esther.dondorp@naturalis.nl>; nhcoll-l@mailman.yale.edu <nhcoll-l@mailman.yale.edu><br>
<b>Subject:</b> Re: [Nhcoll-l] Question about jar grease in fluid collections</font>
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I use vacuum grease, which is more stable than Vaseline and apparently insoluble in ethanol, water or formaldehyde. Dow-Corning make it.</p>
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<b><span style="font-size:12.0pt; color:black">Paul Callomon</span></b><span style="font-size:10.0pt; color:black"><br>
<i>Collection Manager, Malacology and General Invertebrates</i></span><span style="color:black"></span></p>
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<b><span style="font-size:10.0pt; color:black">Academy of Natural Sciences of Drexel University, Philadelphia</span></b><b><span style="font-size:10.0pt; color:black"></span></b></p>
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<span style="font-size:10.0pt; color:black">1900 Benjamin Franklin Parkway, Philadelphia PA 19103-1195, USA<br>
<i><a href="mailto:prc44@drexel.edu"><span style="color:#0563C1">prc44@drexel.edu</span></a> Tel 215-405-5096 - Fax 215-299-1170</i></span><span style="font-size:12.0pt; color:black"></span></p>
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<b>From:</b> Nhcoll-l <nhcoll-l-bounces@mailman.yale.edu> <b>On Behalf Of </b>Esther Dondorp<br>
<b>Sent:</b> Thursday, February 27, 2020 9:32 AM<br>
<b>To:</b> nhcoll-l@mailman.yale.edu<br>
<b>Subject:</b> [Nhcoll-l] Question about jar grease in fluid collections</p>
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<p><b><span style="font-family:"Arial",sans-serif; font-variant:small-caps">External.</span></b></p>
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<span style="color:black">Dear all, </span></p>
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Just a short question - we always use vaseline to seal gound jar stoppers, now that we cannot use our old supplier anymore the support department ordered the commercial vaseline petroleum jelly like<a href="https://nam05.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.drogisterij.net%2Fverzorging%2Flichaamsverzorging%2Flichaamsverzorging-verzorging%2Fcreme%2Fvaseline-petroleum-jelly-original-42182634%3Fpartnercode%3D222%26gclid%3DEAIaIQobChMIiOnM3_fx5wIVWeN3Ch1X_wOHEAQYASABEgJTI_D_BwE&data=02%7C01%7Ceric.lazo-wasem%40yale.edu%7Ccedc46695e7049889cbb08d7bb9c567d%7Cdd8cbebb21394df8b4114e3e87abeb5c%7C0%7C0%7C637184152457750927&sdata=06C4O4Tx5wzzhuHisssu13B%2B%2BKXc%2Bwcaw279uwj6Qts%3D&reserved=0" originalsrc="https://www.drogisterij.net/verzorging/lichaamsverzorging/lichaamsverzorging-verzorging/creme/vaseline-petroleum-jelly-original-42182634?partnercode=222&gclid=EAIaIQobChMIiOnM3_fx5wIVWeN3Ch1X_wOHEAQYASABEgJTI_D_BwE" shash="xPw7JqdWO53dr5xqWUECr/aysEu2yrZJFetRIYuvqm8mQWnMc1i97G6atH3N+ZrFyl8agjIqieZakrQ/yMPlik+ysNKMvC1kaFMi3KGkw8KuInCtLiVrfs26zrBLZ1q+jGQ5XwZ0mTnMgdHEhlKRabjd0yjGi63HWt+wslEso+g=">
this</a> one. I was wondering if we can use it or that it has additional additives that can effect the balance inside the jar. Is there an acid free or other alternative? Wondering what other people use! </p>
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Many thanks,</p>
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<span style="font-family:"Arial",sans-serif">Esther Dondorp</span> </p>
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<span style="font-family:"Arial",sans-serif">Senior Collectiebeheerder</span></p>
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