This adhesive is used to bond Hydrotite hydrophilic waterstop profiles to cured concrete, steel, and other smooth surfaces. Hydrotite waterstops are designed to provide a seal in concrete joints, particularly in applications like tunnels, culverts, dams, and water treatment plants, to prevent water ingress. The adhesive is a high-performance contact adhesive with a long bonding range and excellent initial strength. It meets the specification requirements of MMM-A-121 and MIL-A-21366A. Associated Products: Products commonly cited as meeting or being qualified to MMM-A-121 standards are primarily 3M™ Scotch-Weld™ Neoprene High Performance Rubber & Gasket Adhesives, such as the 1300 and 1300L series.