[NHCOLL-L:5281] Re: Sealing wet collection jars

[Bentley, Andrew Charles]

Ashley

What you are looking for is definitely Parafilm as mentioned by a previous poster.  However, the jar image you posted looks very much like it has a Bakelite lid (hard black "plastic") which probably has a cardboard derivative liner (plastic coated most likely but cardboard nonetheless).  These lids are terrible to say the least and are not alcohol resistant. They are prone to cracking while the inner liner is prone to disintegration over time under exposure to alcohol.  Long term I would highly suggest replacing these lids with high quality lids from Kols Containers or similar that have much more effective alcohol resistant liners and will ensure minimal evaporation from your jars over long periods of time with little to no intervention.  You should be able to get lids to fit your existing jars (except the stopper type – not sure what these are.  Wouldn't mind seeing an image of one of these too).

I can send you samples of the various Kols lids we use if you are interested.  They are relatively inexpensive.  I have a price list too.

Andy

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Andy Bentley
Ichthyology Collection Manager/Specify Usability Lead
University of Kansas
Natural History Museum & Biodiversity Research Center
Dyche Hall
1345 Jayhawk Boulevard
Lawrence, KS, 66045-7593
USA
Tel: (785) 864-3863
Fax: (785) 864-5335
Email: ABentley at ku.edu

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From: Ashley Henderson <AshleyH at cctexas.com<mailto:AshleyH at cctexas.com>>
Reply-To: <AshleyH at cctexas.com<mailto:AshleyH at cctexas.com>>
Date: Tue, 22 Feb 2011 16:45:54 -0600
To: "NHCOLL-L at lists.yale.edu<mailto:NHCOLL-L at lists.yale.edu>" <NHCOLL-L at lists.yale.edu<mailto:NHCOLL-L at lists.yale.edu>>
Subject: [NHCOLL-L:5277] Sealing wet collection jars

Hi Everyone,

I am searching for a supply to seal the jar lids in our wet collection.  I purchased polypropylene sealing tape that is advertised for use with wet collections.  However, it has proven about as effective as wrapping scotch tape around the lids.  The lids were previously sealed with what appears to be very thin paraffin wax that came in tape form.  However, I cannot find this supply.  This link has an uploaded picture of the wax/tape substance http://i.imgur.com/uZUlM.jpg  Does anyone out there have any ideas on this or another way of sealing the lids?  Whatever I use must go on the exterior of the jars because many of the jars have a plug type lid.  Thanks in advance!



Ashley Henderson

Collection Manager
Corpus Christi Museum of Science and History
www.ccmuseum.com
(361) 826-4659


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