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

[Steve Halford]

Hi Jennifer,

Silicon based lubricants like the one in your photo should not be used on
any ground glass fittings.  As we learned in the 1970's, over time the
silicon fuses the glass surfaces together. Stopcocks won't turn and glass
jars won't open.

Best,
Steve.

Steve Halford (halford at sfu.ca)
Museum Technician (Retired)
Department of Biological Sciences
Simon Fraser University



On Thu, Feb 27, 2020 at 9:09 AM Steve Halford <halford at sfu.ca> wrote:

>
> ------------------------------
> *From:* Nhcoll-lOn Behalf OfTrimble, Jennifer Winifred
> *Sent:* Thursday, February 27, 2020 9:09:29 AM (UTC-08:00) Pacific Time
> (US & Canada)
> *To:* Lazo-Wasem, Eric; nhcoll-l at mailman.yale.edu
> *Subject:* Re: [Nhcoll-l] Question about jar grease in fluid collections
>
> This is what we use too.
>
> Best,
>
> Jennifer
>
>
>
> *From:* Nhcoll-l <nhcoll-l-bounces at mailman.yale.edu> * On Behalf Of *Lazo-Wasem,
> Eric
> *Sent:* Thursday, February 27, 2020 12:07 PM
> *To:* nhcoll-l at mailman.yale.edu
> *Subject:* Re: [Nhcoll-l] Question about jar grease in fluid collections
>
>
>
> 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
>
>
> ------------------------------
>
> *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*
> ------------------------------
>
> *Academy of Natural Sciences of Drexel University, Philadelphia*
>
> 1900 Benjamin Franklin Parkway, Philadelphia PA 19103-1195, USA
> *prc44 at drexel.edu <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://urldefense.proofpoint.com/v2/url?u=https-3A__nam05.safelinks.protection.outlook.com_-3Furl-3Dhttps-253A-252F-252Fwww.drogisterij.net-252Fverzorging-252Flichaamsverzorging-252Flichaamsverzorging-2Dverzorging-252Fcreme-252Fvaseline-2Dpetroleum-2Djelly-2Doriginal-2D42182634-253Fpartnercode-253D222-2526gclid-253DEAIaIQobChMIiOnM3-5Ffx5wIVWeN3Ch1X-5FwOHEAQYASABEgJTI-5FD-5FBwE-26data-3D02-257C01-257Ceric.lazo-2Dwasem-2540yale.edu-257Ccedc46695e7049889cbb08d7bb9c567d-257Cdd8cbebb21394df8b4114e3e87abeb5c-257C0-257C0-257C637184152457750927-26sdata-3D06C4O4Tx5wzzhuHisssu13B-252B-252BKXc-252Bwcaw279uwj6Qts-253D-26reserved-3D0&d=DwMFAw&c=WO-RGvefibhHBZq3fL85hQ&r=NFkXm5rU8D1yKtGhU6p549OkNixrA966AjbwYMN3-Uo&m=W5TG-saNh1l_NR3htfLPKC8lbKX0ovNqKm4jf9VaY9g&s=TkwGUS8nRONwlfj1gXaHg1ROJm5qXbQpBKg-ANFbwDA&e=>
> 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
>
>
>
>
>
>
>
> +31717519313 - -
>
> esther.dondorp at naturalis.nl - www.naturalis.nl
> <https://urldefense.proofpoint.com/v2/url?u=https-3A__nam05.safelinks.protection.outlook.com_-3Furl-3Dhttps-253A-252F-252Fwww.naturalis.nl-252F-26data-3D02-257C01-257Ceric.lazo-2Dwasem-2540yale.edu-257Ccedc46695e7049889cbb08d7bb9c567d-257Cdd8cbebb21394df8b4114e3e87abeb5c-257C0-257C0-257C637184152457760923-26sdata-3D-252BaJsYHEYdv9SOATvAAyDEyD9qVCgdeyE8TwDhwicnH8-253D-26reserved-3D0&d=DwMFAw&c=WO-RGvefibhHBZq3fL85hQ&r=NFkXm5rU8D1yKtGhU6p549OkNixrA966AjbwYMN3-Uo&m=W5TG-saNh1l_NR3htfLPKC8lbKX0ovNqKm4jf9VaY9g&s=NrNv4YANE0E6QxE0rKZCOXJzglsnO3LkUQXkCjafmmo&e=>
>
> Darwinweg 2, 2333 CR Leiden
>
> Postbus 9517, 2300 RA Leiden
>
>
>
>
> <https://urldefense.proofpoint.com/v2/url?u=https-3A__nam05.safelinks.protection.outlook.com_-3Furl-3Dhttps-253A-252F-252Fwww.naturalis.nl-252Flang-2Dleve-26data-3D02-257C01-257Ceric.lazo-2Dwasem-2540yale.edu-257Ccedc46695e7049889cbb08d7bb9c567d-257Cdd8cbebb21394df8b4114e3e87abeb5c-257C0-257C0-257C637184152457770918-26sdata-3D1y5iSifFgNWBUgmZKCpYLX-252BkiPm5VNw-252BHPwi7mRGlGU-253D-26reserved-3D0&d=DwMFAw&c=WO-RGvefibhHBZq3fL85hQ&r=NFkXm5rU8D1yKtGhU6p549OkNixrA966AjbwYMN3-Uo&m=W5TG-saNh1l_NR3htfLPKC8lbKX0ovNqKm4jf9VaY9g&s=NpxQ_2BCPk_ly-R8LF89Nx0i7661AfHxfBq651LyXOw&e=>
>
>
>
>
>
>
>
>
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mailman.yale.edu/pipermail/nhcoll-l/attachments/20200228/3ce9c40f/attachment.html>