LD 332 is a kind of one-component polymer water plugging material formed by chemical reaction of isocyanate and water-soluble polyether.
LD 331 is a two-component polyurethane polymer used for waterproof and rock reinforcement. Its high performance of adhesive force and good mechanical and physical properties ensure that it has strong bonding with rock mass. The reaction will expand when it meets water, quickly and effectively to prevent water ingress. Its flexibility can bear the ground movement; Moreover, it has strong anti-permeability, anti-wear, anti-impact and anti-aging properties, so as to achieve the purpose of long-term stable formation, sealing water cracks and channels.
LD 333 is a kind of one-component polymer water plugging material formed by chemical reaction of isocyanate and polyether.
LD 334 rescue polyurethane grouting material usually made of main agent and catalyst with ratio matching of 8:1 or 10:1. It is a kind of polymer chemical grouting material which is specially used in the process of metro line tunnel and shaft excavation, in case of emergency water ingress. The material reacts immediately with water and expands rapidly in volume.