3M 11537-case Fire Barrier Water Tight Sealant 1000 NS, Pail, 1/case, 4.5 gal, Light Gray

3M Fire Barrier Water Tight Sealant 1000 NS is a non-slump, ready-to-use, single component, neutral cure, silicone sealant that cures upon exposure to atmospheric humidity to form a flexible firestop seal. This water tight sealant help control the spread of fire, smoke and noxious gases before, during and after exposure to fire.

• TESTED AND LISTED: For up to 3-hours in accordance with ASTM E814 (UL 1479), ASTM E1966 (UL 2079) and CAN/ULC S115
• FORMS AN EFFECTIVE WATER BARRIER: Meets the UL Water Leakage Test achieving a Class 1 W Rating in accordance with ANSI/UL 1479
• ONE-PART, NON-SLUMP SILICONE SEALANT: For use in both through- penetration and construction joint applications—cures to form a flexible seal
• WITHSTANDS CONSTRUCTION CONDITIONS: Durable sealant provides excellent weatherability during construction
• EASILY RE-ENTERABLE: Formulated as a re-enterable and repairable fire barrier solution
• PRIMER PAINT READY: Sealant is paintable with primer
• For industrial/occupational use only. Not for consumer sale or use.