Metacaulk® 835+ Firestop Silicone Sealant Caulk 5 Gallon Bucket

RectorSeal’s Metacaulk 835+ is a versatile, single-component penetration sealant designed for both interior and exterior applications, ensuring seamless protection against elements like moisture and fire. Its flexible, non-slump formula allows for easy application in vertical and horizontal settings, making it ideal for sealing wall and floor penetrations for various systems, including electrical, plumbing, and telecommunication lines. With an impressive STC rating of 55, this sealant effectively prevents fire from spreading through fire-rated partitions and is compatible with leading piping systems, such as FlowGuard Gold and BlazeMaster. Additionally, it boasts excellent moisture resistance and contains biocides to combat mold growth, providing peace of mind in both wet and dry conditions. With a shelf life of two years, Metacaulk 835+ stands out as a reliable choice for ensuring durability and safety in construction projects.