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I've got a sink basin installed under granite that looks kindof like this:

enter image description here

All around the outside of the sink sandwiched between the basin and the granite is a rubber gasket that has started to fail (break apart and deteriorate) in some areas. I'm handy enough to remove the basin and put a new gasket around it (which I assume is custom and came with the sink but I could probably figure something out), however I am afraid of causing more problems - namely, that the granite might crack from the stress.

Is it ok for me to caulk with clear silicon around the basin? Or should the sink really be removed?

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Assuming by "fail" you just mean crack, deteriorate, or otherwise fall apart, just caulking will be fine. The gasket was probably a time-saver that came with the sink, but typical undermount installations just use caulk to seal the gap.

Trying to remove and replace the whole sink is a real project -- they're glued and clipped to the counter. I replaced my undermount sink, which looked much like yours, with a single-basin granite undermount... it took a full day and plenty of cursing.

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  • Yea its falling apart and the rubber is sort of looking a bit like an old windshield wiper. Yea that is indeed what I was thinking regarding taking the sink out. Caulk it is!
    – Alex
    Commented Jan 16, 2018 at 22:50

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