Water-based polyurethane waterproofing has a high water retention capacity and a large penetration radius, making it suitable for plugging and controlling water in flowing strata, as well as for solidification and protection of the superficial and surface layers of soil. Oil-based polyurethane waterproofing, commonly known as cyanoglycol in China, forms a solid with high strength and excellent waterproofing properties, and is applicable for reinforcing foundations and engineering projects that require both foundation reinforcement and water leakage protection.