[PSUBS-MAILIST] Penetrator materials

Mon May 15 20:06:21 EDT 2017

Alan,I have good luck with windshield adhesive (poly urethane)  I used it as a liquid rubber.  It is super tough and cheap.Hank 

    On Monday, May 15, 2017 5:40 PM, Alan via Personal_Submersibles <personal_submersibles at psubs.org> wrote:

 Ended up ordering this encapsulating 2 part flexible polyurethane,  that is suitable for a marine environment.http://nz.element14.com/robnor/el110h-bk-250/encapsulant-2k-flex-pu-gp-marine/dp/1891122Will see how it goes!Alan

Sent from my iPad
On 16/05/2017, at 3:43 AM, Alan via Personal_Submersibles <personal_submersibles at psubs.org> wrote:

Thanks Hank,I need the two wires to angle off to the sides as they are soldered onto the corners of the LED.Yes I could thread the outside of the nozzle & put on a blue globe cable gland,I have some. Even though Carsten & Emile are advocates of the Blue globe,they do fit two on each penetration; one on the outside, one on the inside &I can't do that with the light fitting.   I have come across a few likely candidates for the outer covering in the wayof a mouldable polyurethane for marine applications......https://www.aeromarineproducts.com/product/urethane-75a-encapsulating-compound/This is an American product I can't locate here in N.Z.. Have found a localproduct ...http://www.electrolube.co.nz/products/encapsulation-resins-polyurethane/ur5118/polyurethane-potting-compound/Cheers Alan 

Sent from my iPad
On 15/05/2017, at 11:59 PM, hank pronk via Personal_Submersibles <personal_submersibles at psubs.org> wrote:

Alan,In an effort to keep it easy and clean looking, I would extend the penetrator body at the wet side to allow for  threading on a compression fitting.   Slide your cable into that and snug the nut and it is done and clean looking.   Also from my experience, I would not angle the wires, I would make it strait through and strip as much of the jacket as possible.  I am sure your drawing is not representing the actual amount to be stripped, but it should be more significant.  Keeping it strait will make it a lot easier, I have done over 20 wires in one penetrator with a strait threaded bore.  Hank 

    On Sunday, May 14, 2017 9:40 PM, Alan James via Personal_Submersibles <personal_submersibles at psubs.org> wrote:

  Hi,I have a number of penetrators to do on my lights & other items, & I'mlooking for the best materials for them.My design is as below. It is the base of my light housing.I have stripped a small section of wire that runs through the epoxy. I am not sure of the best material on the next 2 layers.I am looking at this marine silicone, to seal about an inch up the wiring jacket.http://www.selleys.co.nz/car-care/sealants/marine/Am thinking I will apply this silicone with a brush & then tidy things up & both protect the silicone & support the cable with a molded rubberized outer layer.I am not sure of a suitable moldable material for a marine environment.Am guessing I will need about the same hardness as a standard o-ring.Any suggestions on the material or comments on the design thanks.Alan
_______________________________________________
Personal_Submersibles mailing list
Personal_Submersibles at psubs.org
http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles

_______________________________________________
Personal_Submersibles mailing list
Personal_Submersibles at psubs.org
http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles

_______________________________________________
Personal_Submersibles mailing list
Personal_Submersibles at psubs.org
http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles

_______________________________________________
Personal_Submersibles mailing list
Personal_Submersibles at psubs.org
http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://www.whoweb.com/pipermail/personal_submersibles/attachments/20170516/d1d4d28f/attachment.html>