[Nhcoll-l] Question about jar grease in fluid collections

[Lazo-Wasem, Eric]

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."




Eric A. Lazo-Wasem, Senior Collections Manager

Division of Invertebrate Zoology

Peabody Museum of Natural History

Yale University

170 Whitney Avenue

New Haven, CT 06520

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From: Nhcoll-l <nhcoll-l-bounces at mailman.yale.edu> on behalf of Callomon,Paul <prc44 at drexel.edu>
Sent: Thursday, February 27, 2020 10:47 AM
To: Esther Dondorp <esther.dondorp at naturalis.nl>; nhcoll-l at mailman.yale.edu <nhcoll-l at mailman.yale.edu>
Subject: Re: [Nhcoll-l] Question about jar grease in fluid collections


I use vacuum grease, which is more stable than Vaseline and apparently insoluble in ethanol, water or formaldehyde. Dow-Corning make it.



PC





Paul Callomon
Collection Manager, Malacology and General Invertebrates

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Academy of Natural Sciences of Drexel University, Philadelphia

1900 Benjamin Franklin Parkway, Philadelphia PA 19103-1195, USA
prc44 at drexel.edu<mailto:prc44 at drexel.edu> Tel 215-405-5096 - Fax 215-299-1170







From: Nhcoll-l <nhcoll-l-bounces at mailman.yale.edu> On Behalf Of Esther Dondorp
Sent: Thursday, February 27, 2020 9:32 AM
To: nhcoll-l at mailman.yale.edu
Subject: [Nhcoll-l] Question about jar grease in fluid collections



External.

Dear all,



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 this<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> 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!



Many thanks,








Esther Dondorp

Senior Collectiebeheerder

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