DAP AMP Concrete Sealant, Gray, 9 Oz (7079800764)

This stuff works great! One tube won’t get you far if you have deep cracks to fill- I’d suggest using silicone first to create a bottom to stop this from flowing down into the crack. But the product itself is great

I love this stuff! I have used it where a concrete wall butts against my cottage exterior wall and the seal is amazing. Very easy to use. It levels out and sets up within a matter of hours. It was dry but flexible the day after using it.

Good product. Dries fast, easy to apply.

My driveway is relatively new. The builder left driveway maintenance to me. I tried using foam backing rods and caulk, but the wide seams cracked within two years. This time, I used this DAP product with Great Stuff foam. I filled in the cracks with the foam, let it cure, cut the foam back to make a trough, and then covered the foam with DAP. So far, it has worked well. I'm eager to see how many years it lasts this way.One thing to note, my caulk gun has a small pin to break the seal in the tube. Once the seal has a hole in it, I expect it to open up and left the product flow. The DAP seal doesn't do that. I had to stab a screwdriver into the seal to get a big enough hole to push the product out. If you find it difficult to get the product flowing or if it squeezes out the back of the tube, put more holes in the seal.

Works great! Used this to fill holes in concrete slab that a sloppy contractor made and we had to correct. Works great, dries and adheres quickly.

Easy-to-use. Keeps lizards from entering the bottom of the house.

Had an old garage with large cracks in the floor. Put some foam backer rod in the cracks then a bead of this sealer. It leveled out perfectly and is holding up well. Definitely recommend this stuff.

My husband uses this to fill spaces between concrete slabs in our driveway. He is pleased although it doesn't always level itself like he would like.