DTPU-401 (single component), DTPU-4021 (two-component) polyurethane waterproof coating eleven isocyanate, polyether polyol as the main raw material, with various additives and fillers by addition reaction, it is An environmentally-friendly waterproof coating is uniformly coated on a construction base by tools such as a scraper and a roller, and the reaction is consolidated into a waterproof coating which is elastic, strong and durable. Accelerators can be used to accelerate the curing process and improve low temperature film forming properties.