This product is a high-temperature foaming agent with a relatively high decomposition temperature, especially suitable for processing high-temperature plastics with high softening points, such as rigid polyvinyl chloride, polypropylene, polycarbonate, nylon, ABS, etc. This product has good processing safety and no risk of premature foaming. Adding certain active agents ZBS/ZTS can lower the decomposition temperature, making it suitable for low-temperature foaming products. The decomposition products are colorless, odorless, and non polluting. Plastic products that are particularly suitable for sealing spaces in contact with people, including insulation and sound insulation materials for cars, high-speed trains, airplanes, as well as indoor furniture. The products used are colorless, odorless, non-toxic, and environmentally friendly.