Fire Sealant and Fire Stopping Sealant: A Guide to Intumescent Sealant Applications
When fire spreads through a building, it exploits every gap, penetration, and joint in the structure's passive fire protection envelope. Services that pass through fire-rated walls and floors, cable bundles that route through compartment boundaries, and the movement joints between fire-rated elements all create potential pathways for flames and hot gases to bypass the compartmentation that the building's fire strategy depends on. Fire sealant, fire stopping sealant, and specifically the intumescent sealant category are the products designed to close these pathways, maintaining the integrity of fire-rated compartments at every point where the structure is penetrated or interrupted. What is fire sealant and how does it work? Fire sealant is a compound applied to joints, gaps, and service penetrations in fire-rated construction to prevent the passage of flames, smoke, and hot gases through those openings for the same period as the surrounding construction is rated to resist fire....