UGL Drylok Agent Bonding Latex. Bonds new concrete, stucco, stone, plaster and more to structurally sound, difficult surfaces like dense, slick or porous concrete, stone, drywall, hardboard and plaster walls. When used as an additive in concrete mixes for patching, improves adhesion and increases the resiliency and elasticity of the patch. Improves the performance of powdered waterproofers. Cleans up with soap and water. Repair and repoint masonry, purge walls, resurface concrete driveways, patios, slabs and steps. Dry time is 30 min when used prior to top coating with plaster or concrete, plus more great features.