Using water-based emulsion as the base material, plugging the application area: plugging the sealing joint of the door frame with strict requirements for smoke prevention. Expansion type fireproof sealant, in order to obtain the required fire protection effect, apply the prescribed thickness to determine that the sealant has contact with the surface of the pipe base material to obtain the greatest adhesive force. For excess mastic, before it hardens, it can be removed with water. Elastic fireproof sealant, clean the opening, and prepare to apply FS-I joint surface should be removed scattered debris, dust, oil stains, frost, wax, etc., and keep dry. One component, water-based, acrylic acid fire-proof sealant is a high-performance and elastic antifungal sealant. It can resist high-temperature and high-pressure. It can resist high-temperature, low-temperature, ultra-high, medium, low-pressure and negative pressure, as well as high-speed. Single component sealant, non adhesive, dark red, black paste sealant, does not solidify at room temperature and ablates at high temperature Flame retardant sealant is a new type of one component fire sealant. In recent years, in order to meet the needs of the development of building energy-saving technology, combined with the advantages of domestic and foreign products, it is made of high molecular materials.