Sashco 16210 Slab Concrete Crack Repair Sealant, 10.5 oz Cartridge, Gray (Pack of 1)

Perfect for my needs. Nice and thick and gritty like concrete and smooths down perfectly. Does not run down vertical curbs so I can replace and secure chunks out of my driveway curb. Will buy again.

This is a miracle product which will perform as claimed. One year and a few months ago, I had this product applied to fill the expansion cracks (and other cracks) in my concrete drive way, with some cracks being a half inch (1.27cm) wide. One fall, winter, spring and summer later, the cracks are still perfectly sealed. We used foam Backer rope where needed (as recommended) wire bushed and compressed air cleaned the crack's edges to enable good adhesion of the product (Slab) in the crack edges. I used 38 tubes of Slab so this was no small test. Get it- it works!

Ok Product, but can not fix big gaps also you can not use it without its gun, so also need to buy that, instead just buy white cement and complete work without any problems

I just used this for the second time in about 5 years on 2 different projects. It's amazing. It absolutely seals whatever you put it on. And it lasts for years. It's also easy to work with and easy to clean up. The only downside is that it takes about 24 hours to develop a skin and about 30 days to fully cure to a rubber like finished product. So you'll need to make sure it's reasonably well protected for 30 days while it cures.

I have used this product in my patio which is concrete and has cracks in it. I found this product has worked really well. Very impressed with the results. Now I can wash down my patio without water going in the cracks and undermining the dirt beneath. Will be purchasing more along with backer rod to fix my garage.