PRODUCT DESCRIPTION B2-Fix PU3000 is a single component flexible pre-polymerized polyurethane water reactive foam. This injectable hydrophilic polyurethane water-stop resin reacts with water to form a high solid elastic closed-cell foam. When B2-Fix PU3000 comes in contact with water, the expanding polyurethane foam would create a pressurized foam material that works immediately to seal the leakage passage. The polyurethane foam would form a permanent elastic material to seal off and water-tight the leaking area.