20 oz. Sausage 1003SL Self-Leveling Silicone Fire-Barrier Sealant | 3M-1003SL-20

3M's Fire Barrier Self-Leveling Silicone Water Tight Sealant is ideal for large floor openings or cable tray penetrations. It meets ANSI/UL 1479 and CAN/ULC S115 testing requirements, including W Rating - Class 1 for water resistance, and carries an STC rating of 56 when used in appropriate assemblies. Additionally, it meets VOC compliance for LEED® credits and aligns with IBC requirements, making it a dependable solution for code-driven, performance-sensitive construction projects.

• Ready-to-use, single component, neutral cure, elastomeric silicone firestop that also acts as a barrier to water leakage and airborne sound transmission
• Ideal for use in horizontal applications
• When properly installed, product provides up to 3 hours of protection against the spread of fire, smoke and noxious gas in tested and listed systems
• Meets UL Water Leakage Test, W Rating - Class 1 requirements for systems tested and listed in accordance with ANSI/UL 1479
• Acts as a smoke seal for installations requiring the optional L-Rating