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Discuss Advice needed grout cracked in the Tiling Forum area at TilersForums.co.uk.

  1. Ian Barrow

    Ian Barrow Active Member

    Location:
    Southport
    Good evening, looking for a bit of advice. Had a new bathroom fitted a couple of months ago and grout in all corners has hairline cracks. Builder has regrouted once and covered with clear silicone. However, has cracked again under sealant. Is Mapei grout and matching sealant colour isn't great. Is clearing of cracked grout and application of sealant in corners best resolution?
     
  2. Andy Allen

    Andy Allen Metro specialist & forum entertainer! Trusted Advisor Professional Tiler JOTM Winner Top Contributor

    Location:
    Gloucester
    The corners should never have been grouted in the first place, colour match silicone should of been used...
     
    • Agree Agree x 1
  3. Ian Barrow

    Ian Barrow Active Member

    Location:
    Southport
    Thanks Andy, if we replace grout with sealant, does the grout have to be fully removed? Are there any risks of leaving cracked grout with clear silicone over the top as it currently is?
     
  4. wrighty

    wrighty Professional Tiler

    Location:
    Northumberland
    Ya typical builder then....
     
  5. impish

    impish Trusted Advisor Professional Tiler

    Location:
    Preston, Lancs
    Problem = Builder.
    Solution = Tiler.

    Rake out and clean the internal corners and then silicone.
    Grout acts as a water magnet, sucking water into corners and preventing silicone doing it's job.
     
    • Like Like x 1
  6. Bathfix Bob

    Bathfix Bob Professional Tiler

    So hes grouted, grouted again and then clear siliconed it? Wrong, wrong and wrong again!
     
  7. Waluigi

    Waluigi Top Contributor

    Location:
    UK
    Is this the same Ian Barrow that used to live near Guildford?
     
  8. Ian Barrow

    Ian Barrow Active Member

    Location:
    Southport
    Soŕry WalLuigi, no.

    Any of you guys used the Mapei colour match sealant in the corners and can you get a good finish/match with grout?
     
    • Like Like x 1
  9. Martyn Leeds

    Martyn Leeds Professional Tiler

    Location:
    Leeds
    [QUOTE="
    Any of you guys used the Mapei colour match sealant in the corners and can you get a good finish/match with grout?[/QUOTE]

    Yes
     
    • Agree Agree x 1
  10. jcrtiling

    jcrtiling Trusted Advisor Professional Tiler TTA Member Top Contributor

    Location:
    Salisbury
    Yes also .
     
  11. John Benton

    John Benton Trusted Advisor Professional Tiler JOTM Winner

    Location:
    Leeds
    Yep pretty good colour match

    61CBD935-94B0-4C45-94E1-036C37D87895.jpeg
     
    • Like Like x 1
  12. Waluigi

    Waluigi Top Contributor

    Location:
    UK
    Colour match round a tile as an access panel .

    31C797CD-81FA-4ADE-814B-D1D92D1AC79A.jpeg
     
    • Like Like x 1
  13. Adey1980

    Adey1980 Trusted Advisor Professional Tiler Top Contributor

    Location:
    Caerphilly
    The Mapei could match silicone is spot on;)
     
  14. Ian Barrow

    Ian Barrow Active Member

    Location:
    Southport
    An update - builder been back today but just put silicone over cracked grout, what are the problems, if any, of this?
     
  15. acaciaguy

    acaciaguy Professional Tiler

    Location:
    coventry
    It’s wrong. Silicone in corner joints not grout. He’s just covered over the issue. A full silicone joint is better for flex and water sound
     
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