Ok first I was blown away how fast the product got to my home. I ordered (2) 5 gallon AR 500 cans. It was here in about 24 hours, rain storm and all. I applied with a roller on my brick driveway. It was installed in 2005 and I have used other products to seal. NONE beat this. A great family owned and run business. I will be recommending this product. Thank you.