Bossil BS-2550 is a single-component, gun-grade, ready-to-use neutral silicone sealant formulated to form an elastomeric fire retardant seal in construction applications. It helps control the spread of fire, smoke, and toxic fumes within a given area surrounded by firewalls for a period of up to four hours, depending on joint configuration.
Applications: Recommended for firestop sealing of interior and exterior building and construction movement joints or openings, where a fire rating of up to 4 hours is required. In addition, it is used in mechanical, electrical, and plumbing applications like sealing openings or service penetrations.
Key Performance Properties:
- Fire rating up to 4hrs (BS EN 1663-4: 2006)
- ASTM C920 compliant
- Excellent UV and weather resistance
- Excellent adhesion to most substrates
- Matte finish