Author Topic: Waterproofing One Wire  (Read 1425 times)

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Offline dudleyweather

  • Posts: 75
  • Dudley, West Midlands, UK
    • Dudley Weather
Waterproofing One Wire
« on: November 14, 2011, 02:13:02 PM »

Any suggestions for waterproofing one wire components/sensors? Moisture seems to build up on my sensor boards.  Any epoxies/Resin etc or methods that people have found work?


Offline mikeym

  • Posts: 1,111
  • Thornhurst, Pa USA
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Re: Waterproofing One Wire
« Reply #1 on: November 15, 2011, 01:21:25 PM »
I've used conformal spray on several boards with good luck and also Liquid Electrician's Tape both with good results.




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Offline KeithBC

  • Posts: 173
  • Nova Scotia
Re: Waterproofing One Wire
« Reply #2 on: November 15, 2011, 10:26:51 PM »
I used Liquid Electrician's Tape liberally in my rain gauge.

Offline niko

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Re: Waterproofing One Wire
« Reply #3 on: November 16, 2011, 03:01:45 AM »
Ignition sealer spray should do the job. Just don't spray it on the humidty sensor component.

Offline w0mbat

  • Posts: 300
  • W Tree, East Gippsland, Victoria, Australia
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Re: Waterproofing One Wire
« Reply #4 on: November 16, 2011, 08:22:41 PM »
I always order my HB boards with the coating HB offers. I have never added anything else. My temp/hum/solar board sits in the airstream of my FARS bare, ie no box at all, and I have had no problems with it in around two years. I do have the humidity sensor in a "sock" of very fine plastic fabric. It is mounted behind the mounting post with the component side facing downstream.
I use the normal HB cat5 connectors, I spray the sockets and plugs with contact treatment which is a product called CRC 2-26. I make sure I can see the treatment has soaked right into the cat5 plugs (and, therefore, the ends of the wires). It is not a sealant. As long as the cat5 connections are out of "direct" weather, I have found no need for any additional measures.

Offline Jeep

  • Richard
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  • Whittier, Ca USA
    • Whittier Weather
Re: Waterproofing One Wire
« Reply #5 on: November 16, 2011, 10:10:16 PM »
I use a silicon based dielectric grease on the cat 5 connectors, and then just whatever Eric sprays on his sensors. For the non-HB sensors I have not used anything at all. I just make sure they are mounted so they have a less likely chance of getting soaked in the rain.

Offline aardvark

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  • Des Moines, Iowa, USA
    • Des Moines, Iowa Weather and Climate
Re: Waterproofing One Wire
« Reply #6 on: November 17, 2011, 12:50:19 AM »
I saw this stuff.. I wonder  how really good it is?
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