BOOU Polymer Injection Grout is a polymer-modified, cement-based injection material with high fluidity, strong adhesion, micro-expansion, and excellent anti-seepage properties. It penetrates fine cracks and voids without vibration, bonding densely with existing concrete to restore structural integrity and waterproofing performance. Ideal for low-pressure injection in slabs, walls, beams, columns, tunnels, and basement waterproofing projects.