An undermount granite sink can add tremendous style and class to a kitchen. Most undermount sinks are surrounded by a layer of protective caulking to prevent water from seeping between the sink and the counter. It is important that you properly maintain this caulking so that you do not compromise the seal.

How do you caulk an undermount sink?

With the sink removed, scrape away as much caulk from the top flange of the sink. Clean the surfaces thoroughly with denatured alcohol. With the joint clean and dry, apply a thin bead of the recommended silicone sealant to the top flange of the sink. Re-install the sink quickly, before the silicone sealant cures.

Is silicone enough to hold an undermount sink?

Is Silicone enough to hold an undermount sink? No, caulk is not to be used as the adhesive to hold the sink to the stone. Most undermount sinks come with very clear written installation instructions.