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Thread: Polybrush on tail feathers

  1. #1
    Senior Member JoeRuscito's Avatar
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    Jun 2018
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    Charleston, SC
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    Default Polybrush on tail feathers

    I’m wondering if poly brush should be added on the hysol elevator/horizontal/rudder/vertical tips before laying on the fabric. I think most of these places will be polytak’ed but the wing section has you brush on poly brush to any larger surface before fabric. Not sure if these count. Also the leading edge of elevator and trailing edge of horizontal tube is quite large.

    I figure I should add poly brush on the fiberglass fairings for the vertical and rudder.

    Thanks for any input!

  2. #2
    Senior Member
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    Aug 2016
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    Melbourne, Australia
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    Default Re: Polybrush on tail feathers

    Joe, I polybrushed all tubes and other surfaces that contacted the fabric on all covered surfaces. This will help with bedding the fabric down to all contact surfaces when you heat the fabric for shrinking .... hope that helps.
    David
    SS7 Builder

  3. #3
    Senior Member jiott's Avatar
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    Jun 2010
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    Portland, OR
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    Default Re: Polybrush on tail feathers

    Agree with David.
    Jim Ott
    Portland, OR
    Kitfox SS7 flying
    Rotax 912ULS

  4. #4
    Senior Member Dorsal's Avatar
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    Sep 2008
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    Central, MA
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    1,511

    Default Re: Polybrush on tail feathers

    Did the same as Jim and David
    Dorsal ~~^~~
    Series 7 - Tri-Gear
    912 ULS Warp Drive

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