Hercules Chemical now has its Plumbers Firestop Sealant available in five-gallon pails in addition to the standard 10 oz. cartridges. This latex-based intumescent sealant provides up to a three-hour fire rating and expands up to 10 times to block flame propagation. An excellent smoke seal, it is designed for firestop applications in small commercial or grouped residential construction. Recommended for plumbing, HVAC, bath and dryer vents, metallic and non-metallic pipes, conduits and tubing, insulated pipes, electrical and electronic cabling, concrete, gypsum, metal ductwork and wood floors.
Hercules Chemical Co.