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<p class="MsoNormal"><span style="color:#1F497D">Hi Thomas, <o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">I am not sure about the chemical stability of Instapak foam, however I can give you a take on the same idea done back in the 1990’s. An expanding foam product (not sure which one, before my time here) was placed
in polyethylene bags and used to create storage mounts for vertebrate Paleontology – basically the same idea as Instapak foam. It deteriorates over time (UV or no UV), losing cushioning and support. It literally crumbles away. We are now faced with replacing
all of the mounts that were made – 10-15 years after the initial work was done. <o:p>
</o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><br>
The other problem with this method is the exothermic reaction. It would be worth checking on that before experimenting with it.
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><br>
I have also seen it used to make a cast for exhibition purpose. The foam was coated with thin plaster and painted. There was no light exposure to it 10 years, yet is also deteriorated. <o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Good Luck.<br>
Gretchen Anderson<o:p></o:p></span></p>
<p class="MsoNormal"><b><i><span style="font-family:"Arial",sans-serif;color:#1F497D">Gretchen Anderson<o:p></o:p></span></i></b></p>
<p class="MsoNormal"><span style="font-family:"Arial",sans-serif;color:#1F497D">Conservator<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Arial",sans-serif;color:#1F497D">Carnegie Museum of Natural History<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Arial",sans-serif;color:#1F497D">5800 Baum Blvd<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Arial",sans-serif;color:#1F497D">Pittsburgh, PA 15206<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Arial",sans-serif;color:#1F497D"><a href="mailto:AndersonG@CarnegieMNH.Org"><span style="color:#0563C1">AndersonG@CarnegieMNH.Org</span></a><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Arial",sans-serif;color:#1F497D">412-665-2607 (office)<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Arial",sans-serif;color:#1F497D">412-420-9083 (Cell)<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b>From:</b> nhcoll-l-bounces@mailman.yale.edu [mailto:nhcoll-l-bounces@mailman.yale.edu]
<b>On Behalf Of </b>Schossleitner, T.<br>
<b>Sent:</b> Friday, September 11, 2015 9:03 AM<br>
<b>To:</b> 'nhcoll-l@mailman.yale.edu' <nhcoll-l@mailman.yale.edu><br>
<b>Subject:</b> [Nhcoll-l] longterm stability of Instapak Foam<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Hi there,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">we at the paleo vertebrate department of the MfN Berlin need to pack heavy and big dinosaur bones and are considering using instapak foam (or any other PU foam) inside a plaster casket. So I was wondering if anyone has some experience with
it and if the foam is stable in the long term or if there are any other risks of outgassing or anything else. I know it is sensible to UV light, but as it is in an enclosed casket I would have hoped that shouldn’t pose to much of a problem.
<o:p></o:p></p>
<p class="MsoNormal">I am also interested and open in/to any other idea concering the the storage of big fossil specimen.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Thanks and all the best<o:p></o:p></p>
<p class="MsoNormal">Thomas<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span lang="DE" style="font-size:7.5pt;mso-fareast-language:DE">___________________________________________________________________________________<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="DE" style="font-size:7.5pt;font-family:"Arial",sans-serif;mso-fareast-language:DE"><o:p> </o:p></span></p>
<p class="MsoNormal"><b><span lang="DE" style="font-size:7.5pt;font-family:"Arial",sans-serif;mso-fareast-language:DE">Museum für Naturkunde</span></b><b><span lang="DE" style="mso-fareast-language:DE">
<br>
</span></b><b><span lang="DE" style="font-size:7.5pt;font-family:"Arial",sans-serif;mso-fareast-language:DE">Leibniz-Institut für Evolutions- und Biodiversitätsforschung
<o:p></o:p></span></b></p>
<p class="MsoNormal"><span lang="DE" style="font-size:7.5pt;font-family:"Arial",sans-serif;mso-fareast-language:DE">Thomas Schossleitner<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="DE" style="font-size:7.5pt;font-family:"Arial",sans-serif;mso-fareast-language:DE">Invalidenstrasse 43</span><span lang="DE" style="mso-fareast-language:DE">
<br>
</span><span lang="DE" style="font-size:7.5pt;font-family:"Arial",sans-serif;mso-fareast-language:DE">10115 Berlin</span><span lang="DE" style="mso-fareast-language:DE">
<br>
</span><span lang="DE" style="font-size:7.5pt;font-family:"Arial",sans-serif;mso-fareast-language:DE">Tel. +49(0)30 2093 8537 Fax. + 49(0)30 2093 8868</span><span lang="DE" style="mso-fareast-language:DE"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="DE" style="font-size:7.5pt;font-family:"Arial",sans-serif;mso-fareast-language:DE">e-mail:
</span><span lang="EN-GB" style="font-size:7.5pt;font-family:"Arial",sans-serif;mso-fareast-language:DE"><a href="mailto:t.schossleitner@mfn-berlin.de"><span lang="DE">t.schossleitner@mfn-berlin.de</span></a></span><span lang="DE" style="font-size:7.5pt;font-family:"Arial",sans-serif;mso-fareast-language:DE"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="DE" style="font-size:7.5pt;mso-fareast-language:DE">___________________________________________________________________________________<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-size:7.5pt;font-family:"Arial",sans-serif;mso-fareast-language:DE"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-size:7.5pt;font-family:"Arial",sans-serif;mso-fareast-language:DE"><a href="https://urldefense.proofpoint.com/v2/url?u=http-3A__www.naturkundemuseum-2Dberlin.de_&d=AwMFAw&c=-dg2m7zWuuDZ0MUcV7Sdqw&r=CLFZJ3fvGSmDp7xK1dNZfh6uGV_h-8NVlo3fXNoRNzI&m=o4muPOKOjsje_U7hybp1-IDO81c_S03CMMZ1WN-KGvE&s=6_ohNWxMe6cFTXU6au714QgOWQ6kt9F7ptV2aReJfuk&e=">www.naturkundemuseum-berlin.de</a></span><span lang="EN-GB" style="mso-fareast-language:DE">
</span><span lang="DE" style="mso-fareast-language:DE"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="DE"><o:p> </o:p></span></p>
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