[Nhcoll-l] Skeletons assembly

[Anderson, Gretchen]

Dear Sergio,

I fully agree with Mariana’s recommendation of Paraloid B-72.  As she notes cyanoacrylates and epoxies are too strong, with a tendency to discolor.  Epoxies are difficult to reverse and remove. PVA’s (like white glue) are designed for paper and wood and will expand and contract with fluctuations in relative humidity.  They have what is called cold flow, which means that they will shift as the environment changes.

I am available to chat as well.  But Mariana’s advice to find a local conservator who can advise you on local options is excellent.

Good Luck!
Gretchen Anderson
Conservator,
Carnegie Museum of Natural History

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From: Mariana Di Giacomo<mailto:maru.digi at gmail.com>
Sent: Friday, January 14, 2022 11:00 AM
To: Sergio Montagud<mailto:sergio.montagud at gmail.com>
Cc: NHCOLL-new<mailto:nhcoll-l at mailman.yale.edu>
Subject: Re: [Nhcoll-l] Skeletons assembly

Dear Sergio,

I would recommend the use of a museum-grade (also referred to as archival quality) adhesive for any museum related purposes. For this reason, Paraloid B72 is an excellent choice. There are others out there and we can continue to chat if you wish, but my other recommendation would be to speak to a local conservator who can guide you to find the best one(s) in your area.

Adhesives such as cyanoacrylates and epoxies are too strong for recent bone and can cause damage in the long run.

Let me know if you want to chat further.
Saludos,
Mariana

On Fri, Jan 14, 2022, 06:43 Sergio Montagud <sergio.montagud at gmail.com<mailto:sergio.montagud at gmail.com>> wrote:

Dear all,

We are looking the best type of glue to use for assembly skeletons and standarize a protocol. Many of our specimens come from students' work, who have used mostly the Loctite glue (instant glue) for small animals like birds, reptiles, rodents and bats. Other animals like large mammals or prey raptors has been mounted with Epoxi glue, that mixed two components and remains very fixed. But this mix is dark color. Other pieces in the paleontology collection are join with Paraloid with high concentration.

What cain of glue do you recommended for setting skeletons and join bones as principal protocol?

Is there any well-documented work or reference where all this information is indicated?

Thanks in advance!

Sergio

--
********************************
Sergio Montagud Alario
Museu [UV] Història Natural
Universitat de València
e-mail: sergio.montagud at uv.es<mailto:sergio.montagud at uv.es>
********************************

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