Bought this product to use in the spring to.seal concrete around pool. Pool is 16 years old and has never been sealed, but no cracks. We got so much rain that I had to wait on the sealing project. Used power washer and waited 2 days for it to dry. Started out with a roller but was not going on evenly. Switched over to the sprayer and it went on very easy. Almost to the minute, recommended dry time of 8 hrs, rain came. Did not seem to affect sealer. Next morning water was beading. Time will tell but for now very pleased.