🔥 Seal the deal with confidence — fireproof, watertight, and built to last!
3M 11537 Fire Barrier Water Tight Sealant 1000 NS is a professional-grade, light gray silicone sealant designed for industrial use. It offers up to 3 hours of fire resistance, meets stringent water leakage standards with a Class 1 W Rating, and features a one-part, non-slump formula that cures to a flexible, durable seal. Ideal for through-penetration and construction joints, it withstands harsh construction environments, is re-enterable for repairs, and is primer paint ready for a flawless finish.
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