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Silicone to close gap between countertop and undermount sink

8 years ago


The installers applied some kind of clear silicone to the rim of our undermount sink and then pressed it upwards. It left some gaps and they're not coming back for another week or two.

1. What kind of clear silicone can I use to fill the gaps?

2. How long does it last before I have to scrape it off and re-apply?

3. Is there a clear silicone with antibacterial features? The sink will be exposed to a lot of germs?

Thanks a lot!

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