NUCO GG-200 GUN GRADE FIRESTOP SILICONE - LIMESTONE 17 L

Self-Seal® GG-200 is a non-sag, low-modulus silicone firestop sealant engineered for wall and floor applications, creating pressure-tight seals against water, smoke, and toxic gases. GREENGUARD GOLD certified, it remains water-resistant throughout curing and withstands cracking, UV exposure, and ozone. Freeze-thaw stable and tested under positive pressure for fire scenarios, it is ideal for sealing penetrations in concrete, aluminum walls, gypsum assemblies, expanding pipes, cable trays, and conduits, while meeting UL/cUL ratings for air leakage (L) and water tightness (W).

Before ordering, consult Self-Seal^® firestop listings to confirm that there is a firestop system for your particular site condition. Self-Seal^® ARCHITECTURAL, MECHANICAL and ELECTRICAL APPLICATION CHARTS can be used as a quick reference. Self-Seal^® SL-100 is only recommended for use in firestop systems that are listed in the APPLICATION GUIDELINES FOR Self-Seal^® SL-100/GG-200 SILICONE FIRESTOP SEALANTS.