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    What is the best option to seal between a bath and wall tiles?


    Hi all
    I have a bath fitted to a corner with tiles to the joining walls, where the sealant material which joins the bath edge and the tiles seems to be peeling away.
    I don’t want to leave this issue too long for the risks of leaking as it wears away further.
    What would be the best sealant product I could use to replace this current material that’s peeling away?
    If there are any other products or ideas anyone recommends, please let me know.

    Asked by Robert on 24th Aug 2019
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    Best Answer

    Cena Plumbing And Heating Limited


    We would recommend using CT1 sealant, although slightly more expensive this stuff is the best. We use it in all our jobs. Please make sure the area is cleaned before you reapply CT1 to the area you want it. Hope this helps

    Cena Plumbing and Heating"

    Answered on 30th Aug 2019 - Member since Jul 2019 - report

    "The fact that the mastic is peeling of may mean it will happen again, if you dont use the correct modulus mastic. If the bath is expanding at a different rate to the tiles(because its plastic) then use High modulus Sanitary Mastic, this is for where there is quite a bit of movement (generally with plastic baths that dont weigh much, and filled up weigh tonnes). Clean out all previous mastics before renewing."

    Answered on 12th Sep 2019 - Member since Jul 2019 - report

    "Make sure that when you strip the old silicone away, you remove ALL of it to prevent any contamination. Use a Sanitary silicone sealant with gun. use a silicone tool to prevent any contamination. Fill the bath half full. Start with a thin bead to fill the gap between the tile and bath and then a larger bead to finish. If in doubt get a professional to do it. It will last longer."

    Answered on 29th Sep 2019 - Member since Sep 2019 - report

    "All sealants work the same get one with anti fungal made for bathroom
    Remember to fill up bath whilst setting"

    Answered on 1st Sep 2019 - Member since Aug 2019 - report
    A2Z Star Heating and Plumbing Solutions

    "Hi, I would strongly recommend using the CT1 sealant, it might be more expensive but its top quality and the best. I use it on all my jobs and have never had any complaints. Please ensure the area is dry before application. Hope that helps."

    Answered on 28th Feb 2021 - Member since Dec 2020 - report
    Miss Plumb


    Remember to fill the bath before you seal, and keep it full until sealant is dry.

    Make sure the joint is clean.

    I love CT-1, expensive stuff but fantastic."

    Answered on 18th Oct 2019 - Member since Aug 2019 - report
    Plumbperfect 24/7

    "Its personal choice but I'd probably use a plastic strip, easy job and you'd usually get the adhesive with the plastic. Or you could use the same grout as a filler, if done correctly it would look good, or filler the gap, let it dry then use a TOP QUALITY silicone adhesive. I hope that helps."

    Answered on 24th Aug 2019 - Member since Jun 2019 - report
    Draig Plumbing

    "Hi there,
    Sanitary Silicone sealant is what you need. You will need to completely remove what’s already there and make sure the surfaces are clean and dry before applying the new sealant.
    The sealant I normally use is Dow Corning Sanitary Sealant but thats just personal preference. I hope this helps."

    Answered on 24th Aug 2019 - Member since Aug 2018 - report
    Plumber / Gas Safe

    "Strip away all existing sealant. Wipe clean using a solvent and let dry. Use a good quality bathroom silicone making sure that you use hot water with fairy liquid. Once you have shaped the silicone, dip your finger in the hot water and run along all of the silicone for a smooth finish. Dont forget to half fill the bath with cold water before applying the silicone and once done leave foe at least 12 hours."

    Answered on 24th Aug 2019 - Member since Apr 2019 - report

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