Fireproof Gap Sealant is an eco-friendly single-component fireproofing material that can quickly and effectively seal hard-to-reach gaps. It is suitable for joint sealing between curtain walls and floor edges, as well as for large expansion gaps, offering excellent airtightness and watertightness. It has exceptional elastic deformation capabilities and does not crack upon use. In the event of a fire, it expands upon heating, quickly sealing the gaps left by the combustion of flammable materials, preventing the spread of fire and smoke through the facade, and reducing the extent of fire damage.