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How to fix a rigid extracter duct In

Discussion in 'Building' started by mrbg07546, 19 Sep 2020.

  1. mrbg07546

    mrbg07546

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    I have a plastic 100mm extracter fan duct. We have made a good circle with a core bit. However it keeps slipping out. I’ve tried mortar but it don’t work.
     
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  3. mrbg07546

    mrbg07546

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    Here are pics
     

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  4. Alec_t

    Alec_t

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    Have you tried mastic/silicone?
     
  5. mrbg07546

    mrbg07546

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    Would hard as nails work? I have a tub of that
     
  6. Tigercubrider

    Tigercubrider

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    Probably-
    Remove any dust and possibly seal the mortar/ brick with some watered down pva
    Sand the plastic tube to rough it up

    A couple of short screws through it would bond into the soft adhesive
     
  7. Luckyphil

    Luckyphil

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    Foam it in place

    Phil
     
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