The color of our stamped concrete patio had faded since it was poured seven years ago. The patio barely showed any color. Decided to try Armor AR350. What a difference! Followed the preparation and application instructions. Applied at 8pm using a 1/2 nap roller that was appropriate for the patio surface texture. Went smooth and easy. Photo was taken the next day. The sealant was dry. Unfortunately, I didn't take any before pictures. Theafter photo attached to this review shows it all. The color is back! The wife and I love it.