SpecSeal® Fast Tack® Firestop Spray is an elastomeric single-component advanced hybrid polymer spray coating designed to provide passive smoke and fire protection in construction joints. Ready-to-use and engineered to adhere to common construction substrates, it may be applied using airless spray equipment, brush, or poured as a self-leveling sealant for versatile installation options.

Key Features & Benefits

• Fast tack-free time – 35 minutes for rapid project progression
• Skins over quickly – resists water penetration immediately
• Cures below freezing – year-round application capability
• Tough, water-resistant shield – flexible protection against fire and smoke
• Will not wash out – permanent weather-resistant barrier
• Safe formulation – no asbestos, no PCBs, no inorganic fibers
• Auto-bonding technology – superior adhesion without primers
• Non-halogenated – environmentally safe composition
• High solids content – 91% for minimal shrinkage
• LEED™ compliant – meets v3, v4, & v4.1 requirements for sustainable construction

Applications

• Construction joints protection and sealing
• Curtain wall safing gaps in commercial buildings
• Slab edge/curtain wall conditions fire barrier applications
• Floor-to-floor joints and floor-to-wall joint sealing
• Vertical joints around columns or shear walls
• Building perimeter firestopping applications
• Touch-up applications with brush for small areas
• Self-leveling sealant when poured into linear openings

Product Specifications