[NHCOLL-L:5622] RE: Gaskets for wet collection vats

Fri Sep 2 17:48:41 EDT 2011

Some interest here.  If anyone has an idea of what these gaskets  comprise 
- EPDM?  I would be most interested to know.

With all good  wishes, Simon

Simon Moore MIScT, FLS, ACR,
Conservator of Natural  Sciences,

_www.natural-history-conservation.com_ 
(http://www.natural-history-conservation.com/)  
_www.pocket-fruit-knives.info_ (http://www.pocket-fruit-knives.info/)  

_http://uk.linkedin.com/in/naturalsciencespecimenconserve_ 
(http://uk.linkedin.com/in/naturalsciencespecimenconserve)   

In a message dated 02/09/2011 20:49:40 GMT Daylight Time, abentley at ku.edu  
writes:

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
Dyche Hall
1345 Jayhawk  Boulevard
Lawrence, KS, 66045-7561
USA

Tel:  (785) 864-3863
Fax: (785) 864-5335
Email: _abentley at ku.edu_ (mailto:abentley at ku.edu)          :
:                  :    
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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 
____________________________________________________________________________
__________________ 
Moretta Frederick      Collections Manager, Invertebrates, Fish, 
Amphibians,  Reptiles  |  Natural History      

675 Belleville Street, Victoria, BC Canada V8W 9W2
T 250 387-2932 
_MFrederick at royalbcmuseum.bc.ca_ (mailto:MFrederick at royalbcmuseum.bc.ca)    
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