Best Way to Make 12V Waterproof Joint

Discussion in 'Tech/Mech General' started by spindrifter, Dec 15, 2009.

  1. spindrifter

    spindrifter Read Only Funster

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    Hi All

    Advice please. What is the best way to make a 12 volt waterproof joint under the motorhome running along the Alko chassis - for 4 x LEDS - very low current useage?

    Have considered thus far:

    Solder and shrink wrap. Scotchlock. Waterproof junction block.

    Any thoughts please.

    Thanks

    David ..... Spindrifter
     
  2. Diabalo

    Diabalo Funster

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    Solder and shrink tube then self amalagamating tape

    Scotch locks a not a good idea for permanent joints, ok for emergency in my opinion:thumb:
     
  3. Geo

    Geo Trader - Funster

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    The correct method is a waterproof junction box as used on trailers etc but then you knew that didnt you:Doh:::bigsmile:::bigsmile:
    failing that, Danes suggestion would do the trick
    Geo
     
  4. bobandjanie

    bobandjanie Funster Life Member

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    Hi, I was going to say :winky: If you want a Dry Joint :winky: solder can make a good one.:Doh: But I would use a waterproof junction box, after having lorries,:Doh: you will find it a lot easier to find a fault (if you have one ) with one fitted. :thumb: Bob.
     
  5. hilldweller

    hilldweller Funster Life Member

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    Solder. Coat each joint in clear Bostic. Do it again if you like. Let dry then make mechanically safe with tape.
     
  6. andyman

    andyman Funster

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    We use IP65 rated Stainless Steel motors. The conections are made by soldering the wires and heat shrink tubing that has a coating on the inside that melts with a heat gun. The terminal box has no seal just a lid. these are 400v three phase and being washed down countless times a day, never had a problem. Bought some of the tubing from fleabay.

    Andy
     
  7. stagman

    stagman Deleted User

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    You can't go far wrong than following Diabalo's instructions . Just take your time and use good tabe making sure you stretch and keep it warm before applying:thumb:
     
  8. spindrifter

    spindrifter Read Only Funster

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    Andyman

    Could you tell me the name/type of the heatshrink that has the coating inside please.

    Thanx

    David
     
  9. andyman

    andyman Funster

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  10. upmarkethippy

    upmarkethippy Read Only Funster

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    another option!?!?!

    I have for many years used insulated female and normal male spade connectors, but put the wire into vaseline before crimping and then the male spade in vaseline before connecting the two together.

    I have used this on landrovers/trialers which are regulaly submerged.

    The heat shrink i agree is good, but when a slight crack/split accures the water gets in but cannot get out, causing problems.

    Happy wiring
     
  11. bigfoot

    bigfoot Funster

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