DIY Doctor

Main navigation

Bathroom Shower Tray Grouting Cracking

Postby Highfly117 » Mon Jul 12, 2021 9:36 pm

Hi All,

I have a bathroom shower tray and it seems to be grouted in around the top edge, the material is hard and not like silicone, This has started to crack and need regular cleaning to stop it going a dirty colour.

My first thought was to let it all dry and then put a coat of silicone bathroom sealant on it however all this did was allow mold to grow behind the sealant and then started to peel off.

Can anyone give me some advice on what i should use to repair this grouting around the edge of the show tray.
Rank: Labourer
Progress to next rank:
Posts: 2
Joined: Sun Aug 05, 2018 1:35 am


Simply Build It

Postby stoneyboy » Thu Jul 15, 2021 8:49 pm

Hi highfly117.
Remove the silicone, rake out the grouting, clean the adjacent areas with a scouring powder to remove any soap residues, treat what remains with neat bleach, rinse and allow to dry. Then apply the silicone mastic forming a reasonable size bead, make sure you use mastic with mould inhibitor or fungicide.
Regards S
Rank: Project Manager
Posts: 4852
Joined: Wed Dec 10, 2008 6:44 pm

Display posts from previous
Sort by
Order by

  • DIY How to Project Guides
  • DIY how to tutorial projects and guides - Did you know we have a DIY Projects section? Well, if no, then we certainly do! Within this area of our site have literally hundreds of how-to guides and tutorials that cover a huge range of home improvement tasks. Each page also comes with pictures and a video to make completing those jobs even easier!

  • Related Topics