<div dir="auto">Jasper, I am curious as to the pressure you subjected it to.<div dir="auto">Put it 20 meters deep in the ocean and I would not be surprised if it leaks. </div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Fri, 21 Jul 2023, 16:46 Jasper Mackenzie, <<a href="mailto:jasper.mackenzie@gmail.com">jasper.mackenzie@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><div>I tried and tried with these and the I2C chips and water always found a way in.</div><div>All the readily available options failed.<br><div>I suspect that potting material is the best bet.</div><div><br></div></div><div>Recent experience from some friends suggests that it is also the heating and cooling pulling moisture down the wires.</div><div><br></div><div>My need is long gone, but I am interested to hear of your success please!</div><br></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Fri, 21 Jul 2023 at 16:35, Charles Manning <<a href="mailto:cdhmanning@gmail.com" target="_blank" rel="noreferrer">cdhmanning@gmail.com</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"><div dir="auto">I have used epoxy and wax before. A lot depends on how waterproof and how durable you want to achieve. You could also use that liquid electrical tape stuff.<div dir="auto">Not all epoxies are waterproof for a long period underwater. Also consider that some materials are insulating and slow down the readings. </div><div dir="auto"><br></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Fri, 21 Jul 2023, 14:04 Volker Kuhlmann, <<a href="mailto:list57@top.geek.nz" target="_blank" rel="noreferrer">list57@top.geek.nz</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">I have a bunch of these capped metal tubes and a bunch of temperature<br>
sensors in TO-92 case. What is a good material to fill the tube with<br>
before pushing in the sensor, that is thermally conductive? Epoxy glue?<br>
<br>
Yes they are available ready-made on Ali (waterproof DS18B20) but I<br>
don't trust the sensor they use.<br>
<br>
Thanks,<br>
<br>
Volker<br>
<br>
-- <br>
Volker Kuhlmann<br>
<a href="http://volker.top.geek.nz/" rel="noreferrer noreferrer noreferrer" target="_blank">http://volker.top.geek.nz/</a> Please do not CC list postings to me.<br>
<br>
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