The concrete authorities in North America have conducted extensive research to understand the factors that contribute to ugly, damaged concrete. They found that in almost all the cases, water was the culprit. You see concrete has tiny pores on it and when water or moisture enters the concrete via these pores, they cause havok! Water will freeze and thaw, expand and contract, grow bacteria, look ugly and even ooze out salts. Using a Concrete Sealer can strenghten and protect your Concrete Floors from water damage and ugly stains.