Hercules plumbers firestop sealant is latex-based and intended for multi-purpose use. This intumescent sealant provides up to a three hour fire rating and is designed for a wide array of firestop applications in small commercial or grouped residential construction or other structures with similar characteristics. Can be used in systems where dynamic movement is
expected: plumbing; HVAC; bath and dryer vents; metallic pipes; non-metallic pipes, conduits and tubing; insulated pipes; electrical and electronic cabling; concrete, gypsum, metal ductwork; wood floors.
Expands up to 10 times to block flame propagation. Excellent smoke seal.
Water-based for easy cleanup.Water-resistant once cured; will not separate
or shrink when dry. Tested for excellent acoustical performance; reduces
noise transmission. Flexible, non-sagging, and low odor. Paintable. Low
VOCs. No solvents. Non-halogenated. Does not contain PCBs or asbestos.
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