DIY Doctor

Sealing the cut edge of tiles before re-sealing

Postby Bloodoo » Sun Aug 16, 2020 10:22 am

After some 18 months much of the the silicone has let go from where my cut tiles meet the shower tray on the tile edge only, not from the tray.

I have removed the old silicone and intend to clean all accessible surfaces with methylated spirit before re-applying silicone. Do I need to apply tile sealer to the cut edges of tiles to improve silicone adhesion? Will tile sealer damage the tray?
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Postby stoneyboy » Mon Aug 17, 2020 8:44 pm

Hi bloodoo
Suggest you use silicone to seal the tile edge - apply with a stiff artists brush, allow to cure then apply the main bead.
Regards S
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Postby Bloodoo » Mon Aug 17, 2020 9:03 pm

Thanks Stoneyboy.
I can manage that on the wider gaps but more difficult on the thinner (2mm-3mm)gaps.
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Postby stoneyboy » Tue Aug 18, 2020 8:52 am

Hi bloodoo
On the thinner gaps run a bead of silicone along it and feed this in with a knife blade, clean off the excess and leave it to set. With a gap that narrow nothing will be perfect.
Regards S
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Postby Bloodoo » Tue Aug 18, 2020 10:39 am

Thanks Stoneyboy, I will give that a try
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