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Sealing cut flexible strip in tubing

Discussion in 'Tips and Tricks' started by AussiePhil, Mar 11, 2012.

  1. AussiePhil

    AussiePhil Dedicated Elf Administrator

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    Just making up an arch and the Pixel strip need to be trimmed down to just under 4M, decided to make them 125 pixels long, 375 channels per arch


    Here's how i soldered some wires and sealed the cut end.


    Cut End
    IMG_0226.JPG


    Just push the tube back a little and hold in place
    IMG_0227.JPG


    At this point i soldered on wires only to Gnd-SD-CK.... the wire is only there to grab onto rather than for use.
    Next pulled tube back down over joint and injected silicon inside tube
    IMG_0228.JPG


    Next slip some clear heatshrink over the joint and add some more silicon
    IMG_0229.JPG


    Next heat-shrink shrunk using hot air gun. expect a little silicon to squeeze out, i always see this as a good thing and then just clean up with a tissue to remove the excess.
    IMG_0231.JPG


    Cheers
    Phil
     
  2. fasteddy

    fasteddy I have C.L.A.P Global Moderator Generous Elf

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    Thats pretty much the way i do it as well and has worked perfect for 3 years

    Just ensure you use non corrosive, neatural cure silicone
     
  3. lithgowlights

    lithgowlights Senior Elf

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    I do it the same way, except I use end caps (I bought 500 of them for next to nothing), but the same basic idea minus the heatshrink.

    Neutral cure silastic is a must - I had to repair a strip I gave a mate for his work ute when he used normal acetic cure to seal the ends... lasted a few months before failing and on closer inspection the copper had literally been eaten away by the silastic he used
     
  4. Robbo

    Robbo Full Time Elf

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    got a link for the end caps?
     
  5. lithgowlights

    lithgowlights Senior Elf

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  6. ԆцряєсϮ

    ԆцряєсϮ Senior Elf

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    Just out of curiosity, how do you know which silicons are Neutral cure?
    I just had a look on some I have which is Selly's all clear but it doesnt say on the tube?
     
  7. OP
    OP
    AussiePhil

    AussiePhil Dedicated Elf Administrator

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    Rup


    Selleys All Clear .... I wouldn't use it for this.


    I use PARFIX roof, gutter and concrete highly flexible clear silicon, Neutral Cure, Non-Corrosive.


    Any brand will do as long as the label say all of the following... Clear - Neutral Cure - non corrosive AND Silicon


    Cheers
    Phil
     
  8. ԆцряєсϮ

    ԆцряєсϮ Senior Elf

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    Thx Phil.... noted.
     
  9. Henedce

    Henedce Apprentice Elf

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    If the silicone smells like salt and vinegar chips it is acetic cure . Bad for all metals
     
  10. ԆцряєсϮ

    ԆцряєсϮ Senior Elf

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    I notice your using a syringe as well, care to explain that little trick?
    Do you buy it in a syringe or do you put it in for each use?
     

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