# Under-Counter Kitchen Sink Silicone Adhesive Question

**URL:** <https://boards.straightdope.com/t/under-counter-kitchen-sink-silicone-adhesive-question/976743>\
**Category:** Factual Questions\
**Created:** [December 18, 2022, 4:23pm UTC](https://boards.straightdope.com/t/under-counter-kitchen-sink-silicone-adhesive-question/976743 "2022-12-18T16:23:40Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![dolphinboy](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/dolphinboy/32/330_2.png) [@dolphinboy](https://boards.straightdope.com/u/dolphinboy)\
**Post date:** [December 18, 2022, 4:23pm UTC](https://boards.straightdope.com/t/under-counter-kitchen-sink-silicone-adhesive-question/976743/1 "2022-12-18T16:23:40Z")

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Help! We’re in the process of replacing a stainless steel under-counter kitchen sink. We’re ready to install the new sink, and want to use a strong silicone adhesive to help hold it up and to seal it. There are brackets holding the sink in position, but a strong adhesive would ensure it stays where it is. Is there any particular type or brand of silicone adhesive we should use or avoid using for some reason?

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**Author:** ![dolphinboy](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/dolphinboy/32/330_2.png) [@dolphinboy](https://boards.straightdope.com/u/dolphinboy)\
**Post date:** [December 18, 2022, 4:38pm UTC](https://boards.straightdope.com/t/under-counter-kitchen-sink-silicone-adhesive-question/976743/2 "2022-12-18T16:38:36Z")

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I just read [here](https://sinkformula.com/best-silicone-for-undermount-sink/) that 100% silicone sealant is best. Does that make sense?

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**Author:** ![beowulff](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/beowulff/32/542_2.png) [@beowulff](https://boards.straightdope.com/u/beowulff)\
**Post date:** [December 18, 2022, 4:39pm UTC](https://boards.straightdope.com/t/under-counter-kitchen-sink-silicone-adhesive-question/976743/3 "2022-12-18T16:39:55Z")

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Yes.  
Your basic, clear 100% silicone RTV is what you want.

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**Author:** ![dolphinboy](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/dolphinboy/32/330_2.png) [@dolphinboy](https://boards.straightdope.com/u/dolphinboy)\
**Post date:** [December 18, 2022, 4:54pm UTC](https://boards.straightdope.com/t/under-counter-kitchen-sink-silicone-adhesive-question/976743/4 "2022-12-18T16:54:00Z")

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Thanks, beowulff. That’s what I figured.