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<p>Dear Nate,</p>
<p>I know its a bit of a late response. <br>
Have you tried different solvents than acetone (pretty aggressive
and super volatile). Paraloid B72 can be dissolved in ethanol as
well. You can use a wide variety of solvents actually, depending
on what you want to work on of course. A magnetic stirrer will be
useful, since some solvents takes a wile to dissolve the pellets.
For many of the purposes I use it, my solvent of choice is ethyl
acetate.<br>
</p>
<p>Hope this gives you a wider view on the use of the resin. <br>
</p>
<p>all the best from Germany,<br>
</p>
<div class="moz-cite-prefix">Am 01.05.24 um 19:29 schrieb Shoobs,
Nate:<br>
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<p class="MsoNormal">Hi all,</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.
</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).
</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.</p>
<p class="MsoNormal"> </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.
</p>
<p class="MsoNormal"> </p>
<p class="MsoNormal">Is there any clever solution for this?</p>
<p class="MsoNormal"> </p>
<p class="MsoNormal">Also -- has anyone tried “fineline
applicators” with b-72 before?</p>
<p class="MsoNormal">Best,</p>
<p class="MsoNormal">Nate</p>
<p class="MsoNormal"> </p>
<div>
<p class="MsoNormal"><span
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</span><b><span
style="font-size:9.0pt;font-family:"Arial",sans-serif;color:#BB0000;background:white">Nathaniel
F. Shoobs</span></b><span
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Curator of Mollusks<br>
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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
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style="font-size:9.0pt;font-family:"Arial",sans-serif;color:#0563C1;background:white">mbd.osu.edu</span></a></span></p>
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