X8 ultra fine crack slurry is a new type of ultra fine crack grouting leakage material, low viscosity (near the viscosity of water) can be poured into the concrete fine pores and ultra fine cracks, to generate impermeable gel, fill the fine pores of concrete, to achieve the purpose of seepage blocking leakage.The material gel time can be accurately adjusted to control the diffusion radius, low permeability, good aging resistance in water, slurry and gel environmental protection and non-toxic, which is an almost ideal chemical grouting material.