How do I know which sealant to use for a bathroom sink?
Bathroom sink repairs often present a choice between using a silicone or caulk bead or a rubber grommet, leaving homeowners unsure which product is correct for the job. This confusion makes it difficult to know whether to replace existing seals or rely on temporary fixes before a renovation.
What people tried
Every workaround mentioned in the threads below. We haven’t tested any of them — and nobody here is claiming they worked.
Found another way around this?
Share your steps and trade-offs so fellow engineers don't have to reinvent the wheel. No account required.
- 1Asking for product recommendations on online forumsDid this help you?
- 2Relying on community advice to identify appropriate kitchen and bath silicone caulkDid this help you?
- 3Waiting for the silicone to dry to see if it leaks before deciding whether to redo itDid this help you?
- 4Visiting hardware stores to look at different productsDid this help you?
- 5Asking online communities for product recommendationsDid this help you?
- 6Using 100% pure silicone or siliconized acrylicDid this help you?
In their words
Unedited, grouped by where they were said, most upvoted first within each place, each linked to the thread it came from.
“I bought this kitchen sink. What is the correct, most durable sealant to use for sealing the gap?”source ↗
“I went to the hardware store but there are SOOOO many things to choose from. Silicone? Siliconized acrylic?”source ↗
“My bathroom sink needs to be re-calk. I was wondering, is this the right product to use:”source ↗
“The ring around the drain / stopper in the instructions said to use a silicone / caulk bead to make the seal, while the old sink stopper had a rubber grommet.”source ↗
“Should I redo this with a grommet or leave the caulk for the 1-2 years before renovating if it doesn't leak?”source ↗
Where this came up
People with this problem also raised
- 6How do I know which plumbing parts to buy for a DIY repair?
- 3Which plumbing pipe material is actually best for a whole house?
- 13Best way to seal gaps around pipes under the sink?
- 14How to connect a sink drain to existing glued PVC pipes
- 2Do I need a waterproof membrane under tile or a toilet flange?
- 9Do I need to caulk my new shower or was it left unfinished?