[Nhcoll-l] [EXTERN] Material of rubber seal

[Lennart Lennuk]

Hi!
I am so sorry about the minimal information that I gave.
I am looking a material for rubber seal that are used in collection storage seals – door seals and also seals between two storage units to avoid dust spreading around the collection.
Best!
Lennart

From: Nhcoll-l <nhcoll-l-bounces at mailman.yale.edu> On Behalf Of Andries J. van Dam
Sent: Thursday, November 20, 2025 7:47 PM
To: nhcoll-l at mailman.yale.edu
Subject: Re: [Nhcoll-l] [EXTERN] Material of rubber seal

Dear Lennart,
You might also opt for rubber gaskets made EPDM (ethylene-propylene-diene-monomer). For several decades they are successfully used for sealing bail jars at Naturalis Leiden-NL.
Kind regards,
Dries
--
Andries J. van Dam (director)

Alcomon Company
Leliestraat 54
2313BH Leiden
Netherlands

Tel: +31615676299
E-mail: ajvandam at alcomon.com<mailto:ajvandam at alcomon.com>
Website: http://www.alcomon.com<http://www.alcomon.com/>

[AlcomonLogo]





Van: Nhcoll-l <nhcoll-l-bounces at mailman.yale.edu<mailto:nhcoll-l-bounces at mailman.yale.edu>> namens Dirk Neumann <d.neumann at leibniz-lib.de<mailto:d.neumann at leibniz-lib.de>>
Datum: donderdag 20 november 2025 om 14:52
Aan: <nhcoll-l at mailman.yale.edu<mailto:nhcoll-l at mailman.yale.edu>>
Onderwerp: Re: [Nhcoll-l] [EXTERN] Material of rubber seal

Hi Lennart,

if you refer to Le-Perfait gaskets, the baseline should be

Replacement gaskets should be made of a durable but elastic synthetic material such as neoprene or Buna-N (acrylonitrile butadiene rubber, also called nitrile).

For Europe, there seems to be a vendor in Switzerland (Fabian do you have more details?)

With best wishes
Dirk


Am 20.11.2025 um 14:41 schrieb Lennart Lennuk:
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<mailto:Lennart.lennuk at loodusmuuseum.ee>




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Stiftung Leibniz-Institut zur Analyse des Biodiversitätswandels
Postanschrift: Adenauerallee 127, 53113 Bonn, Germany

Stiftung des öffentlichen Rechts;
Generaldirektion: Prof. Dr. Bernhard Misof (Generaldirektor), Adrian Grüter (Kaufm. Geschäftsführer)
Sitz der Stiftung: Adenauerallee 160 in Bonn
Vorsitzender des Stiftungsrates: Dr. Michael H. Wappelhorst
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