Used this to do about 3000 sq ft of flagstone patio in the back and front. Used Valspar from Lowes and it never clogged. I used three coats and waited 40 minutes between coats (I live in AZ and it dries fast). This thing was a life saver from having to refill a one gallon several times. It worked great.
Rating: [5 of 5 Stars!]