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Sealing the gap between the window reveal and the window plastic

Discussion in 'Windows and Doors' started by bobloes, 15 Oct 2020.

  1. bobloes

    bobloes

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    Hi All,

    I am sure this is not a new problem. When the double glazing was installed (15 years ago) the fitters used a sealant of some kind but within a reasonably short time the plastic had separated from the reveal and the sill. I have tried decorators caulk and good old polyfilla but they also seem to separate. Have not yet tried silicon sealant - good/bad idea? Any suggestions welcomed.

    Thanks

    Bob
     
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  3. KenGMac

    KenGMac

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    bobloes, good evening.

    Any chance please of some images?

    Ken.
     
  4. bobloes

    bobloes

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    Hope fully you can see the problem from these photos.
     

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  5. phatboy

    phatboy

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    No to silicone, it won't take paint.

    A tube of CT1 and a can of the multi solve will make a nice strong join, that can flex, and can be painted. Costs a bit more for the sealant, and then the spray can to make it spread nicely, but worth it if you need to do a few windows and doors.

    https://www.amazon.co.uk/CT1-030442...words=ct1+sealant+white&qid=1603138496&sr=8-2

    https://www.amazon.co.uk/CT1-CT1SOL...qid=1603138521&sprefix=ct1+mul,aps,141&sr=8-1

    These are the products, but MUCH better pricing should be available locally! Think I paid about half that.
     
  6. bobloes

    bobloes

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    Thanks Phatboy having read the blurb and some reviews I am sure you are right. Am I correct in assuming the solvent is purely for ensuring a clean surface to apply the CT1?
     
  7. phatboy

    phatboy

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    It's great for removing old silicone, but (As I think it advises), you apply a bead of CT1, then apply the spray and it stops it spreading everywhere your finger goes, and leaves a nice tight bead of sealant. 99% chance it won't crack ever again!
     
  8. bobloes

    bobloes

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    Thanks again for your help, now just need to get the fateful finger under control.
     
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