I originally bought this to help with spalling brick from using salt on my concrete steps (bricks on the walls on the side of the steps) but sprayed the concrete steps and the 2 squares in front of the steps to have a dside by side to compare to. WOW! The side that is sprayed looks dry but the water is just sitting on top. You can see where I stepped in the dealer and walked across the not sealed side and what an astounding difference! I had my chimneys sprayed as well when having my roofing done. I believe this may help with clearing ice and snow in the winter but not sure on that yet. I'll likely be buying several more 5 gallon containers and doing my huge concrete driveway. I'm impressed!