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Since nobody else chimes in, my 2 cents:</div>
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I was told black sharpie industrial is the one to use. Works great for me - granted, my samples are not very insulating.
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Probably makes sense to say "black" as that is likely to be carbon-filled hence conductive. Looks like high-temperature feature of "industrial" means carbon.
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I also tried Sakura Micron archive pen - for sharper tip. It worked, although I don't have very favorable memories of that. IIRC film was too thick inhibiting navigation.</div>
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Mike</div>
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<p style="font-size:11pt; font-family:Calibri,sans-serif; margin:0"><span>Michael Yakimov</span></p>
<p style="font-size:11pt; font-family:Calibri,sans-serif; margin:0"><span>Research scientist</span></p>
<p style="font-size:11pt; font-family:Calibri,sans-serif; margin:0"><span>College of Nanoscale Science and Engineering</span></p>
<p style="font-size:11pt; font-family:Calibri,sans-serif; margin:0"><span>SUNY Polytechnic Institute</span></p>
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>From:</b> labnetwork <labnetwork-bounces@mtl.mit.edu> on behalf of Sabaa Rashid <srash027@uottawa.ca><br>
<b>Sent:</b> Saturday, June 3, 2023 7:59 PM<br>
<b>To:</b> labnetwork@mtl.mit.edu <labnetwork@mtl.mit.edu><br>
<b>Subject:</b> [labnetwork] Sharpie for charged particle beams</font>
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<div>Hi everyone,<span></span></div>
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<div dir="ltr">I am wondering if you ever worked with a Sharpie marker that is conductive and has the right viscosity to deliver a reasonable thickness as a protective layer for generating cross-sections for example using a focussed ion beam. <span></span></div>
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<div dir="ltr">I have heard mixed reviews on ink pigments, some recommend using specific colours and others recomm<span>end avoiding some colours. Can you please share any experiences you had working with Sharpie markers/colours/tip thickness/other marker brands
for this purpose? <span></span></span></div>
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<div dir="ltr"><span>Thanks,</span></div>
<div dir="ltr"><span>Sabaa Rashid | Research Engineer</span></div>
<div dir="ltr"><span>Canadian Centre for Electron Microscopy (CCEM) - McMaster University </span></div>
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