[NHCOLL-L:5621] RE: Gaskets for wet collection vats

[Bentley, Andrew Charles]

Moretta

We recently went through a major tank overhaul here at KU and I contacted both Delta Designs and Steel Fixtures in Topeka - we use stainless steel tanks manufactured by them.  Bruce Danielson from Delta sent me a replacement gasket for our tanks that is a 3M product (do not know the name) which is sticky backed.  We have not had any of these in long enough to know if they are a viable replacement i.e. whether they hold up any better to alcohol or oils than the original, but it may be worth contacting him to see what it the product is.  Maybe you could then contact 3M to find out the properties of the material and whether it would hold up or if they have anything that would.  I would have done this myself when I first got them but this got pushed onto the back burner like so many other things.

Bruce's email address is bdanielson at deltadesignsltd.com<mailto:bdanielson at deltadesignsltd.com>.

Andy

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 Andy Bentley
 Ichthyology Collection Manager
 University of Kansas
 Natural History Museum & Biodiversity Institute
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 Lawrence, KS, 66045-7561
 USA

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From: owner-nhcoll-l at lists.yale.edu [mailto:owner-nhcoll-l at lists.yale.edu] On Behalf Of Frederick, Moretta RBCM:EX
Sent: Friday, September 02, 2011 1:02 PM
To: 'NHCOLL-L at LISTS.YALE.EDU'
Subject: [NHCOLL-L:5619] Gaskets for wet collection vats


I need to find a replacement for the gaskets lining the lids of our fluid storage vats, and am interested in hearing what materials others are using to seal their large storage containers, as well as suggestions for suppliers in North America.


We are looking to seal two types of vats, both of which are used to store fish or invertebrate specimens in ethanol or isopropanol.  The vats are not opened often (~2-10 times a year), and the material used will need to prevent evaporation as well as hold up well against alcohol fumes and fish oil.  Ideally, we would like to find something with a peel and stick side so it can be attached directly to the lid.



Our larger vats (4'x6') are fiberglass with flat mating lips, held closed with through bolts every 12" or so.



Our smaller vats are HDPE, about 3'x4' with a gravity sealed lid that slips over the vat and has a groove in it to hold the gasket. We are hoping to create a tighter seal on these vats with strapping. The groove is about 1/2" in diameter and previous gaskets were simply stuffed into this space with no adhesive.  We have found however that over time these gaskets slip out, falling into the vat, so we are hoping to find something that we can adhere inside the groove.


Thanks for any advice you can give me!

Cheers,

Moretta
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Moretta Frederick      Collections Manager, Invertebrates, Fish, Amphibians, Reptiles  |  Natural History
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