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Q for the brains trust: gap in floor

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  1. #1
    Hewer of wood
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    Default Q for the brains trust: gap in floor

    Did a reno years ago; involved butting a concrete extension floor to the existing board floor. Laid cork tiles over the lot with tile joins matching the floor join.

    Worked fine 'til I had to improve wooden underfloor ventilation. Worked so well that the wood floor shrunk and there's now a 1/4" horizontal gap. Mostly the levels are OK.

    So I'm thinking of filling the gap with polyurethane filler, which is said to be paintable and sandable, so I can roughly colour match.

    Workable do you reckon?

    Is the stuff sticky enough to bond to the by now dirty sides of the tiles?

    TIA

    Cheers,

    Ern

  2. #2
    Resigned SilentButDeadly's Avatar
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    Default

    Whatever you put in there is going to have to be quite flexible - how flexible is that polyurethane? Perhaps you could stuff the base of the gap with foam tape and caulk over
    Joined RF in 2006...Resigned in 2020.

  3. #3
    Hewer of wood
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    Default

    Thanks SBD.

    Polyu is sposed to be flexible, but whether enough who knows.

    Foam tape sounds like good insurance.

    Appreciate your taking the time.
    Cheers, Ern
    [SIZE=1]

  4. #4
    Hwd Flooring Manufacturer glock40sw's Avatar
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    Default

    G'dat.
    Try Sikaflex. It comes in different colours to match some timbers.
    EG: Sand stone matches Spotted Gum
    Hooroo.
    Regards, Trevor
    Grafton

  5. #5
    Hammer Head - 1K Club Member
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    Default

    Quote Originally Posted by glock40sw View Post
    G'dat.
    Try Sikaflex. It comes in different colours to match some timbers.
    EG: Sand stone matches Spotted Gum

    sorry but sandstone is to light for spotted gum, great for blackbutt and beach,

    what we do some times is use sika pro then touch up colour with paint pen to macth timber.

  6. #6
    Hewer of wood
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    Default

    Thanks guys.

    It's cork tile with fairly varied honey colour.
    Cheers, Ern
    [SIZE=1]

  7. #7
    Rigid Member UteMad's Avatar
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    Default

    Mate check out Sika 290DC we use ite for reno work and have sealed the gaps between recycled t&g boards where gaps were huge.. its also used for boats when they route a joint in the top of the board to create a mastic seal..
    you'll want to use there clear primer too... you can either trim it to flush or wait til its cured and sand it... As to colours we use black as its more heritage but does come in colours as far as i know....

    its not a bunnings job though so you will need to ring a sika stockist to get it


    cheers utemad

  8. #8
    Hewer of wood
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    Default

    Ta Utemad.

    So it has some flex.
    Cheers, Ern
    [SIZE=1]

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