DIYbanter - View Single Post - "Sanitary" mastic

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On 03/01/2018 20:12, wrote:
In a moment of madness I had "stone tiles" put on the floor and walls of the bathroom.The shower tray is a pre-formed composite material that is tiled. The mastic pealed around the junction between the wall and floor of the shower (it's all covered in tiles, no plastic tray) causing a hard to diagnose water leak. When pulled, the mastic pealed off the tiles like opening a new zip. Is there a good "sanitary" sealant (what does that mean anyway?) that has good adhesion to stone tiles? Should I prep the area where I am going to reapply mastic in any way apart from leaving it all to dry out for a couple of weeks? Does dilute bleach cause mastic to fail which I use when there is a hint of mould on the mastic?

Thanks,

Clive

In a similar situation I used a plastic (ceramic lookalike) quadrant and
bedded it in silicone - it was still fine when I moved house 10+ years
later. I will be doing the same when I get around to the bathrooms in
the "new" house.