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<p class="MsoNormal"><span style="font-family:"Calibri",sans-serif">Hi Nate,<br>
We use HDPE dropper bottles for our B72, kind of like <a href="https://starbond.com/products/empty-glue-bottles">
this</a>. The ones we order also have an optional needle tip insert for smaller cracks and joins. It makes cleanup a lot easier and if/when your B72 becomes a “brick” you can just swirl some acetone in there to loosen it up and get it back to the desired consistency.
A safety pin does wonders if the fine or regular tips every get dried shut. I rarely have issues with caps getting glued on and it allows us to mix up various consistencies and have smaller bottles available for use in prep and conservation.<br>
<br>
I do keep a few natural-hair small size paintbrushes on hand as well for consolidating or top-coating if necessary. Since they’re natural hair, you can clean them with acetone and not turn them into little melty stubs (a lesson learned many years ago the hard
way!). <br>
<br>
cheers,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Calibri",sans-serif">Carrie<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Calibri",sans-serif"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-family:"Calibri",sans-serif;color:#1F497D">Carrie Eaton, Museum Curator (she/hers)<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Calibri",sans-serif;color:#1F497D">UW Geology Museum<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Calibri",sans-serif;color:#1F497D">1215 West Dayton Street<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Calibri",sans-serif;color:#1F497D">Madison, WI 53706<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Calibri",sans-serif;color:#1F497D">608.262.4912<o:p></o:p></span></p>
<p class="MsoNormal"><b><i><span style="font-family:"Calibri",sans-serif;color:#0070C0"><a href="http://www.geologymuseum.org"><span style="color:#0563C1">www.geologymuseum.org</span></a><o:p></o:p></span></i></b></p>
<p class="MsoNormal"><b><i><span style="font-family:"Calibri",sans-serif;color:#0070C0">instagram @uwgeologymuseum<br>
facebook.com/uwgeologymuseum</span></i></b><span style="font-family:"Calibri",sans-serif;color:#1F497D"><o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-family:"Calibri",sans-serif"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span style="font-family:"Calibri",sans-serif">From:</span></b><span style="font-family:"Calibri",sans-serif"> Nhcoll-l <nhcoll-l-bounces@mailman.yale.edu>
<b>On Behalf Of </b>Shoobs, Nate<br>
<b>Sent:</b> Wednesday, May 1, 2024 12:30 PM<br>
<b>To:</b> nhcoll-l@mailman.yale.edu<br>
<b>Subject:</b> [Nhcoll-l] Paraloid B-72 applicators?<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Hi all,<o:p></o:p></p>
<p class="MsoNormal">I use <span class="spelle">Paraloid</span> B-72 to repair shells that have been broken, and to prepare shell surfaces for labeling in cases where the material doesn’t hold ink well.
<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">While the repairs it makes are beautiful (often I can’t even tell that the shell was broken in the first place), a great frustration of using B-72 is how messy it can get, and how quickly the solvent evaporates (which changes the concentration).
<o:p></o:p></p>
<p class="MsoNormal">I have the resin pellets and mix up new B-72 in acetone, and currently we apply the B-72 with little brush-bottle applicators supplied by University Products with their pre-mixed paraloid.<o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal">However, it only takes a few uses before the threads on the brush-bottles get
<span class="spelle">gunked</span> up, requiring acetone and a lot of grip strength to reopen.
<o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal">Is there any clever solution for this?<o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal">Also -- has anyone tried “fineline applicators” with b-72 before?<o:p></o:p></p>
<p class="MsoNormal">Best,<o:p></o:p></p>
<p class="MsoNormal">Nate<o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
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<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Arial",sans-serif">--</span><o:p></o:p></p>
<p class="MsoNormal" style="line-height:13.5pt;background:white"><span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:#333333"><img border="0" width="224" height="45" style="width:2.3333in;height:.4722in" id="Picture_x0020_1" src="cid:image001.png@01DA9BCD.EAF02AA0" alt="The Ohio State University"><br>
</span><b><span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:#BB0000;background:white">Nathaniel F. Shoobs</span></b><span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:#333333"><br>
Curator of Mollusks<br>
</span><span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:#BB0000;background:white">College of Arts & Sciences</span><span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:#333333"> Dept. of Evolution, Ecology, and Organismal Biology<br>
Museum of Biological Diversity, 1315 Kinnear Rd, Columbus, OH 43212<br>
614-688-1342 (Office)<br>
</span><span style="color:black"><a href="https://urldefense.com/v3/__http:/mbd.osu.edu__;!!Mak6IKo!MotlVgsH6Xi4oqg7bMHdxEi-RnsHDGT6qcSkx9Hy4xcPJlVknwpokWqZ7tOl6AkrG4ncFX70MAmNN_woLZkf5TM$"><span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:#0563C1;background:white">mbd.osu.edu</span></a></span><o:p></o:p></p>
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