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Need to place sensors 100ft deep in water. Wire terminations, wire, etc.

fastline

Aug 9, 2010
13
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Aug 9, 2010
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13
We are working on a project in which we will need to submerge sensors and suspend them by their lead wire/cable. We need to achieve a bulletproof water seal! I am pretty certain that just potting will not stop water ingress as it will just sneak between all the contact surfaces, but I could be wrong and I hope so, that would be easy! I have commonly seen vulcanized rubber plugs made for stuff like this.

We will probably use a type of multi conductor cable in a jacket and may try to achieve an Oring or similar seal against the jacket. Curious what you guys have run into? I would guess there are many marine applications where this is done daily but I am new to this effort. I was sort of wondering about a slightly expansive potting? maybe if we contain it, it will expand and provide the sealing? It seems risky.
 

Bluejets

Oct 5, 2014
7,091
Joined
Oct 5, 2014
Messages
7,091
There are epoxies specifically designed for such a purpose. Look for electrical cast resin underground cable jointing kits. 3M is one manufacturer and there are many others.
 
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