This stuff is so freaking thick to apply to walls but it gets the job done. Coverage is poor so you gotta buy a lot. Drying is around 2 to 3 hrs. Got this at home depot.

My husband and I bought an old home that had an addition made of cinderblock walls. The walls were not dryloked before they were framed and ultimately resulted in rotting wood framing. We purchased 3 5 gallon buckets of the drylok to completely coat 2 large walls with 2 coats of paint. It is not easy to do and we hand painted with a brush to get in all the crevices. Imagine painting thick pancake batter onto a block wall. Ultimately to dried very fast and helped us prep the walls for the next step in our remodel