SOUDAL B1 Fire Class & Acoustic Trade Expanding Foam Gap Filler Genius Gun 600ml Rated 4HR One Component, Polyurethane, Rapid Curing

Fire Silicone B1 FR is a high-quality, fireresistant, smoke-tight, neutral, elastic, one component joint sealant based on silicones. Highly elastic fire rated neutral cure silicone sealant with a fire rating of up to 4 hours in certain joint For use in external and internal passive fire protection systems as an elastic joint sealant; installation of fire retardant window and door frames, fire retardant expansion and connection joints. Fire retardant expansion and connection joints in the construction industry. Very easy to apply, Low modulus, Not paintable and Colourfast and UV resistant.", Manufacturer: ARA CHOICE