Description
Firestop 814+ Multi-Family Residential/Commercial Intumescent Firestop Caulk is a highly flexible firestopping sealant that conforms to ASTM E-814 (UL 1479) standards for multi-family and commercial firestopping applications. It is used for a wide variety of electrical, plumbing, HVAC, and head-of-wall applications for “through-penetrations” found in 1-to-2-hour fire rated wood, gypsum, and concrete floor and wall assemblies.