[Nhcoll-l] Material of rubber seal

[Shoobs, Nate]

Hey Lennart,
This topic has come up on the list recently. Institutions in the US tend to be using either Buna-N (a kind of synthetic nitrile rubber), or ethylene propylene diene monomer (EPDM) which is another synthetic rubber replacement.

Both have good longevity and track record compared to traditional rubber gaskets, for replacing the gaskets on bail-top jars. If you search the NHColl archive, I believe there were some European list members who sent in manufacturers in Europe.

But hopefully some others closer to you can advise!
Best,
Nate


-
Nathaniel F. Shoobs, Curator of Mollusks
College of Arts & Sciences Dept. of Evolution, Ecology, and Organismal Biology, The Ohio State University
Museum of Biological Diversity
1315 Kinnear Rd, Columbus, OH 43212
614-688-1342 (Office)
mbd.osu.edu<http://mbd.osu.edu/>
________________________________
From: Nhcoll-l <nhcoll-l-bounces at mailman.yale.edu> on behalf of Lennart Lennuk <Lennart.Lennuk at loodusmuuseum.ee>
Sent: Thursday, November 20, 2025 8:41:15 AM
To: nhcoll-l at mailman.yale.edu <nhcoll-l at mailman.yale.edu>
Subject: [Nhcoll-l] Material of rubber seal

Hi! What material should collection storage rubber seals are of? They should be archival quality, non-acid off-gassing. Lennart Lennuk Head of collections Estonian Museum of Natural History 00372 5656 9916 Lennart. lennuk@ loodusmuuseum. ee ‍ ‍


Hi!

What material should collection storage rubber seals are of?
They should be archival quality, non-acid off-gassing.





Lennart Lennuk

Head of collections

Estonian Museum of Natural History

00372 5656 9916

Lennart.lennuk at loodusmuuseum.ee




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