<div dir="ltr"><div><div class="gmail_default" style="font-family:arial,sans-serif">Dan,</div><div class="gmail_default" style="font-family:arial,sans-serif"><br></div><div class="gmail_default" style="font-family:arial,sans-serif">Here at UofM/LNF we're using this product material (Optishield II) for all of the self contained systems and have had good luck with it.</div><div class="gmail_default" style="font-family:arial,sans-serif"><br></div><div class="gmail_default" style="font-family:arial,sans-serif"><a href="https://shop.optitemp.com/">https://shop.optitemp.com/</a></div><div class="gmail_default" style="font-family:arial,sans-serif"><br></div><div class="gmail_default" style="font-family:arial,sans-serif">Thanks,</div><br clear="all"></div><div><div dir="ltr" class="gmail_signature" data-smartmail="gmail_signature"><div>Dennis<span class="gmail_default" style="font-family:arial,sans-serif"> Schweiger</span></div><div><span class="gmail_default" style="font-family:arial,sans-serif">University of Michigan/LNF</span></div><div><span class="gmail_default" style="font-family:arial,sans-serif">Facilities</span></div><div> </div><div>734.647.2055 Ofc</div></div></div></div><br><div class="gmail_quote gmail_quote_container"><div dir="ltr" class="gmail_attr">On Mon, Mar 30, 2026 at 7:57 PM Dan P. Woodie <<a href="mailto:daniel.woodie@princeton.edu">daniel.woodie@princeton.edu</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">



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Most Excellent Lab Managers, </div>
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I am sure most of you have struggled at one point or another with clogged cooling lines on tools or chillers from either mineral deposits or biological growth. We built a specialized cleaning cart with a tank, pump, and filter that we can connect to a tool
 to run a cleaning solution through it. We are looking for suggestions for cleaning solutions that others have found to work well without corroding the materials in the tool too badly. We have purchased some corrosion testing coupons to test these solutions
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So, if you have any cleaning solutions you can recommend, please share them so we can include them in the testing. Thanks.</div>
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Dan</div>
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Daniel Woodie </div>
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Director, Micro/Nanofabrication Center, Princeton Materials Institute</div>
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