Choose the Right Caulk for a Kitchen Sink

Learn how to choose the right caulk for a kitchen sink. Find out why you need mildew-resistant caulk for a kitchen or bath.

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LESLIE: Gloria in Illinois, you’ve got The Money Pit. What can we do for you today?

GLORIA: I had a new kitchen sink put in and it was not level; so they told me to shim it, which I did, but it now needs to be resealed because it’s not level. So can you tell me what I seal it with?

TOM: Yeah, are we talking about the edge where it overlaps the countertop, Gloria?

GLORIA: Right.

TOM: OK. Well, the best thing to use for that purpose is a kitchen and bath caulk and the reason the product should say kitchen and bath caulk is because it’s treated with a mildicide. OF course, being a very damp area, if it’s not treated with a mildicide you’re going to have some problems with mold growth. DAP makes a product that’s a kitchen and bath caulk with an additive called Microban and it’s very effective at not growing mold, so …

GLORIA: Microvan?

LESLIE: Microban.

TOM: Microban and the manufacturer is DAP – D-A-P. So look at the DAP kitchen and bath caulk …

GLORIA: OK.

TOM: … and I think that you’ll find that that’s probably the best way to seal that. Very inexpensive, by the way. We’re only talking about a couple of dollars for the caulk and you definitely can do it yourself.