The SECUR Low-Level Flood Protection System utilizes Flex Seal Flood products, specifically designed to work together to help slow down or even stop low-level water from entering structures. Flood Liquid should be used primarily as a final layer of protection to help seal any small pinholes or openings that may have been missed. Brush generous amounts directly on top of your other SECUR Flood Protection products, making sure the coat is wider and overlaps with previous layers. Allow to dry as long as possible before floodwater arrives. Liquid is ready to start holding back water in as little as 1 hour (depending on temperature, humidity and thickness of coat).