<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body dir="auto"><div></div><div>Brian,</div><div>I have clear vinyl tubing & it's quite soft, but it's in a fixed position.</div><div>Maybe some sort of hydraulic line with a swivel join?</div><div>BTW Greg was finding that some of his plastics in his motor were turning</div><div>brittle from his compensating oil.</div><div>Alan</div><div><br>On 19/02/2019, at 6:52 PM, Brian Cox via Personal_Submersibles <<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>> wrote:<br><br></div><blockquote type="cite"><div><div style="font-family:Arial, sans-serif; font-size:10pt;"><font size="2">Alan,</font><div><font size="2"> I've been using mineral oil just in my vinyl tubing that I use for running my power lines from the thru hulls to the motors. I would actually like to find something to soften those vinyl lines ! they are so stiff . Actually would probably be better to find a more flexible tubing , just to make turning the motors a bit easier . </font></div><div><font size="2"><br></font></div><div><font size="2">Brian<br></font><br><span style="font-size: 10pt;">--- <a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a> wrote:</span><br><br><span style="font-size: 10pt;">From: Alan via Personal_Submersibles <<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>></span><br><span style="font-size: 10pt;">To: Personal Submersibles General Discussion <<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>></span><br><span style="font-size: 10pt;">Subject: Re: [PSUBS-MAILIST] Mineral Oil substitutes</span><br><span style="font-size: 10pt;">Date: Tue, 19 Feb 2019 16:52:57 +1300</span><br><br><div style="font-size: 10pt;"></div><div style="font-size: 10pt;">Brian,</div><div style="font-size: 10pt;">I have bought a few 20 litre cans of different types of mineral oils that</div><div style="font-size: 10pt;">were recommended to me by industrial chemists. Even though they</div><div style="font-size: 10pt;">were meant to be very pure (low in aromatics) they were softening plastics</div><div style="font-size: 10pt;">when I was using them in motors.</div><div style="font-size: 10pt;">With any alternatives, I would be careful that they don't yellow in time. With</div><div style="font-size: 10pt;">the powerful LEDs they can put out a lot of heat that probably helps with</div><div style="font-size: 10pt;">yellowing & deterioration of plastics.</div><div style="font-size: 10pt;">I am using silicone in my motors. I believe that Emile went over to silicone</div><div style="font-size: 10pt;">for thrusters a while back.</div><div style="font-size: 10pt;">Alan</div><div style="font-size: 10pt;"><br>On 19/02/2019, at 4:05 PM, Brian Hughes via Personal_Submersibles <<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>> wrote:<br><br></div><blockquote style="font-size: 10pt;"><div>
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Oil compensation and biodegradable alternatives - especially for lights - any ideas? Hank uses vegetable oil. What about filtered biodiesel or diesters. Suggestions?<br>
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Brian<br>
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