This commercial grade sealant is versatile, economical, and can be used for wide range of common firestop applications.  Intumescent sealant expands up to 10x. Excellent for use as a smoke seal, and acoustically tested to reduce noise transmission. Contains no solvents that might adversely effect plastic pipes or cable jackets. Single grade may be caulked standard cartridge or bulk loaded, knifed or troweled. Paintable. UL classified and FM approved. Color: Red.