This is my first time sealing concrete. I thoroughly researched different types of sealers and different brands finally settling on Foundation Armor SX5000 WB. I am very happy with this product. It is very easy to apply with a pump sprayer made for concrete sealers. Initially I only did half of the driveway. There was a visible difference in the treated half vs. the untreated half. The treated half repelled the water and kept it from permeating the concrete. Now the entire driveway is sealed and ready for winter!