TLS-402F crack injection adhesive, also known as sealing adhesive or crack repair adhesive, is a special adhesive for grouting concrete structural micro cracks. It is refined using a unique high-performance polymer toughening modification technology and low viscosity epoxy resin with various active additives. This product is widely used for crack injection and repair in concrete bridges, buildings, water conservancy, road surfaces and other engineering projects. It can also be used for reinforcement and repair of large structural penetrating cracks and deep and winding cracks. It can also be used for grouting reinforcement treatment of mortar, concrete, wall panel hollowing and gaps.