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Waterproof wire connection

Discussion in 'Do It Yourself - DIY' started by vitaly, Oct 20, 2017.

  1. vitaly

    vitaly Angel Fish

    # of Dives: 500 - 999
    Location: SF Bay Area
    48
    12
    8
    I need to fix a broken canister light cable. Any suggestion how to isolate and waterproof the connection?
    I plan to put some aquaseal on interal wires and use waterproof heat shrink tubing over external shell.

    Thank you,
    Vitaly
     
  2. DennisS

    DennisS Marine Scientist

    # of Dives: 500 - 999
    Location: Sebastian, FL
    4,154
    482
    83
    Use what they call adhesive lined heat shrink. When it is heated the inner goo melts and oozes out each end. Then wrap it with self vulcanizing tape
     
  3. vitaly

    vitaly Angel Fish

    # of Dives: 500 - 999
    Location: SF Bay Area
    48
    12
    8
    Is it self vulcanizing and self fusion tape are the same?
     
  4. Pao

    Pao Manta Ray

    # of Dives: 200 - 499
    Location: Manila, Philippines
    995
    210
    43
    Why not just change the entire cable? And the glands while you're at it.
     
  5. vitaly

    vitaly Angel Fish

    # of Dives: 500 - 999
    Location: SF Bay Area
    48
    12
    8
    There is a thick layer of glue inside the battery block and the head. Too much work to clean it.
     
  6. Pao

    Pao Manta Ray

    # of Dives: 200 - 499
    Location: Manila, Philippines
    995
    210
    43
    So the heat shrink solution won't work :-(
     
  7. bada3003

    bada3003 Solo Diver

    # of Dives: 200 - 499
    Location: Indiana
    234
    40
    28
    Details will depend on what you mean by "broken". In general, basically what DennisS said. I don't use self vulcanizing tape though. Instead 2-3 layers of the waterproof heat shrink (different diameter). If you go the cheap route, regular heat shrink with silicon added will do as well. If you want to add further abrasion resistance, wrap it with wire protecting mesh. Don't go overboard since the fixed cable needs to have some flexibility.
     
  8. decompression

    decompression Instructor...seriously...

    # of Dives: 5,000 - ∞
    Location: Victoria, BC, Canada
    4,040
    1,551
    113
    Urathane?
     
  9. vitaly

    vitaly Angel Fish

    # of Dives: 500 - 999
    Location: SF Bay Area
    48
    12
    8
    Thanks everybody for suggestions. Adhesive lined heat shrink worked fine for the weekend but I definitely need to replace the whole cable as a long term fix. Any recommendations where to buy the cable?

    Thank you,
    Vitaly
     
  10. Johnoly

    Johnoly Solo Diver

    # of Dives: 2,500 - 4,999
    Location:
    2,319
    1,723
    113
    Bobby at Light Monkey has always been very helpful.
     
    northernone likes this.

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