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<div><span><span style="color: rgb(0, 0, 0); font-family: times new roman, new york, times, serif; font-size: 16px;">Alan, all great points and I wouldn't argue against them. You may be right about the epoxy/pvc adhesion, and as usual the internet isn't much help. I can find as many "don't do it" as "it works fine" opinions out there. <span><span style="color: rgb(0, 0, 0); font-family: times new roman, new york, times, serif; font-size: 16px;">I should have scuffed it up a bit though, that would have helped with adhesion. In the past I have fabricated my own "blue globe" fittings out of brass compression fittings but I wanted all plastic so I wouldn't have to worry about decay of the brass by salt-water. </span></span>I mentioned a couple of times in the video that this was a non-critical component but maybe should have impressed that a bit more on the viewer. PVC certainly would not be my choice for a critical application.</span></span></div><div><span><span style="color: rgb(0, 0, 0); font-family: times new roman, new york, times, serif; font-size: 16px;"><br></span></span></div><div><span><span style="color: rgb(0, 0, 0); font-family: times new roman, new york, times, serif; font-size: 16px;">Jon</span></span></div><div><span><span style="color: rgb(0, 0, 0); font-family: times new roman, new york, times, serif; font-size: 16px;"><br></span></span></div><div><br></div>
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On Thursday, June 13, 2019, 08:22:08 AM EDT, Alan via Personal_Submersibles <personal_submersibles@psubs.org> wrote:
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<div><div dir="ltr">Jon,<br></div><div dir="ltr">that was one of the most comprehensive "How to" videos I've seen.<br></div><div dir="ltr">Have one of those compasses so will emulate that.<br></div><div dir="ltr">I have reservations about epoxy sealing the wires though.<br></div><div dir="ltr">I did a lot of experiments with glues & PVC wire jackets & found a lot of<br></div><div dir="ltr">the glues disappointing. I found one product specifically for PVC boats<br></div><div dir="ltr">that stood out.<br></div><div dir="ltr">I have mentioned before that I potted a couple of wires for 1" in to a WD40<br></div><div dir="ltr">filled housing & the WD40 just ran out between the epoxy & wire jacket<br></div><div dir="ltr">without pressure. <br></div><div dir="ltr">Under pressure I would guess that the PVC jacket would be more compressible<br></div><div dir="ltr">than the epoxy resin around it & would tear away from it, letting water in.<br></div><div dir="ltr">Suggest epoxying the whole board both sides & the wires where they are <br></div><div dir="ltr">soldered on, in case of water egress.<br></div><div dir="ltr">I have strong reservations about the epoxy sticking to the PVC pipe also.<br></div><div dir="ltr">I would be interested in others opinions on this as potting wires is <br></div><div dir="ltr">something we are doing a lot of.<br></div><div dir="ltr">Alan<br></div><div dir="ltr"><br></div><div dir="ltr">_______________________________________________<br></div><div dir="ltr">Personal_Submersibles mailing list<br></div><div dir="ltr"><a href="mailto:Personal_Submersibles@psubs.org" rel="nofollow" target="_blank">Personal_Submersibles@psubs.org</a><br></div><div dir="ltr"><a href="http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles" rel="nofollow" target="_blank">http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles</a><br></div></div>
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