My wife and I applied AR500 to our stamped concrete patio. First coat Friday afternoon; second coat Saturday morning. Very easy to apply- we sprayed with a tank sprayer, then rolled out with a paint roller. This really brought out the color, which was exactly what we were looking for. The gloss is superb; looks like it rained every day! This is our first experience with AR500; hopefully it will last for a few years. Will definitely use this again!