KBS FR Caulking is a high viscous, one component fire retardant intumescent caul that is fire rated for up to 2 hours under UL, FM and 88476.

KBS FR Caulking is used to seal electrical cables, plastic pipes, steel and copper pipes which penetrate fire rated walls and floors.

KBS FR Caulking consists of water-based thermoplastic resins, intumescent agents, reinforcement fibres, pigments and additives. KBS FR Caulking is free of halogens and solvents.