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Thread: Installing new 13 gallon tank - adhesive question

  1. #1

    Join Date
    Dec 2015
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    Campbellsburg, KY
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    29

    Default Installing new 13 gallon tank - adhesive question

    Got an easy question for ya. The instructions say to run a bead of "structural adhesive" along the trailing edge of the fuel tank between the rear spar and the tank. Is Hysol suitable for that?

    Also, where do I find or how do I make FLOX?

    Thank you.
    Bob & Debbie
    KF IV N1670B
    Campbellsburg, Kentucky

  2. #2
    Senior Member Esser's Avatar
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    Jul 2011
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    Edmonton, AB
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    2,048

    Default Re: Installing new 13 gallon tank - adhesive question

    Hey Bob,

    You want a Dow Corning product called RTV 739. It's in a caulking tube. I don't think the hysol has the flex you need in this application.
    ------------------
    Josh Esser
    Flying SS7
    Rotax 914iS
    AirMaster Prop

    Edmonton, AB, CWL3

  3. #3
    Administrator DesertFox4's Avatar
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    Arizona
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    Default Re: Installing new 13 gallon tank - adhesive question

    No. Do not use Hysol there. Also the manual says to use an alcohol based silicone adheasive. Amonia based silicone can promote corrosion.

    Use a wavy bead when applying so air can get in and cure the adheasive.

    This is what we use available from Kitfox Aircraft also.
    IMG_3099.jpg


    DesertFox4
    Admin.
    7 Super Sport
    912 ULS Tri-gear


  4. #4
    Administrator DesertFox4's Avatar
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    Default Re: Installing new 13 gallon tank - adhesive question

    Flox is basically chopped up cotton. Bought a bag of it from Aircraft Spruce enough to build 6 aircraft.


    DesertFox4
    Admin.
    7 Super Sport
    912 ULS Tri-gear


  5. #5
    Senior Member efwd's Avatar
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    Yorba Linda, CA
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    Default Re: Installing new 13 gallon tank - adhesive question

    I too have a bag of Flox to make the other half of the fleet. PM me and I can send you a cup of the stuff. The qty that Kitfox sends in the kit is plenty. Not sure why I bought more.
    Attached Images Attached Images

  6. #6
    Senior Member Maverick's Avatar
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    Mar 2017
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    Phoenix
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    295

    Default Re: Installing new 13 gallon tank - adhesive question

    How many tubes of the Dow Corning RTV 739 does one need to install both tanks, one or two?

    https://www.amazon.com/Dow-Corning-P...y&sr=8-1-fkmr0

    Thanks

  7. #7

    Join Date
    Jul 2018
    Location
    Westfield, IN
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    187

    Default Re: Installing new 13 gallon tank - adhesive question

    One was enough for me.

  8. #8
    Senior Member efwd's Avatar
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    Default Re: Installing new 13 gallon tank - adhesive question

    One for me as well
    Eddie Forward
    Flying
    SS7, 912iS, Garmin G3X

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