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    waterproofing your electrics

    Hi all,

    I have just put together my horn (after many months of procrastinating!) and now I need to waterproof the switch and contacts. At the moment I have just wrapped them in electrical tape and put the switch in a little plastic bag sealed with electrical tape. I was wondering if this will be ok or if there is something more I have to do?

    I guess it doesn't need to be 100% waterproof (except for the switch), but the contacts need to be apart so they don't short in the rain.

    Thanks

    Daven

  2. #2
    Senior Member rumrunn6's Avatar
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    homemade horn? pictures?
    cycling is like baseball ~ it doesn't take much to make it interesting

  3. #3
    Senior Member nwmtnbkr's Avatar
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    Quote Originally Posted by daven1986 View Post
    Hi all,

    I have just put together my horn (after many months of procrastinating!) and now I need to waterproof the switch and contacts. At the moment I have just wrapped them in electrical tape and put the switch in a little plastic bag sealed with electrical tape. I was wondering if this will be ok or if there is something more I have to do?

    I guess it doesn't need to be 100% waterproof (except for the switch), but the contacts need to be apart so they don't short in the rain.

    Thanks

    Daven
    You should be fine having used electrical tape. If you want the switch to look nicer, you could use plastic wrap sold at grocery stores; wrap it around the switch and use a hair dryer to shrink it.

    rumrunn6,

    It's easy to macguyver a handlebar holder for a toggle switch. I used the bottom of a vitamin bottle as the mount for the center-off toggle that I used for my turn signals. I simply cut a hole for the center-off toggle, notches for it to sit on the handlebar when secured with zip ties and then spray painted it black.


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    Here are the pictures of my build, for those interested.

    Thanks for the tips on the waterproofing - I will do what I can and test it out!

  5. #5
    Senior Member nwmtnbkr's Avatar
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    Looks nice. You used a micro-lever switch (I used one of those for the brake light I installed). Given how it's mounted, I think you might consider adding a bead of silicon where the wires attach then wrap in plastic wrap and use a hair dryer to shrink it since water will run down the wires. Good work.

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    Quote Originally Posted by nwmtnbkr View Post
    Looks nice. You used a micro-lever switch (I used one of those for the brake light I installed). Given how it's mounted, I think you might consider adding a bead of silicon where the wires attach then wrap in plastic wrap and use a hair dryer to shrink it since water will run down the wires. Good work.
    Thanks, that was my main concern really. The batteries are stored in my "bento box" and there may be a little water run down there, but I think I can prevent that as the cover is quite tight and should angle the wires downwards.

  7. #7
    Senior Member rumrunn6's Avatar
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    Interesting setup!

    There is also a neat product I have used - it's a paint on wire insulation. it's wicked toxic though but works great for hard to reach areas and for waterproofing applications where convention shrink tubing just won't do the trick.

    http://media.photobucket.com/image/p...s/IMG_4177.jpg

    I've used glue and aquarium sealer too.
    cycling is like baseball ~ it doesn't take much to make it interesting

  8. #8
    Senior Member nwmtnbkr's Avatar
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    Quote Originally Posted by rumrunn6 View Post
    Interesting setup!

    There is also a neat product I have used - it's a paint on wire insulation. it's wicked toxic though but works great for hard to reach areas and for waterproofing applications where convention shrink tubing just won't do the trick.

    http://media.photobucket.com/image/p...s/IMG_4177.jpg

    I've used glue and aquarium sealer too.
    Interesting, I'd never seen that product before. Good to know it's available, if needed. Thanks for posting the pic.

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