Our 3M Fire Barrier Water Tight Sealant 1003 SL is a self-leveling silicone sealant firestop that creates a flexible seal and resists moisture across floors and other horizontal surfaces. This ready-to-use, single component neutral cure firestop is tested to ASTM and UL standards to help control the spread of fire, smoke and noxious gasses.

• Excellent caulk rate and sealant can be applied with conventional caulking equipment
• Exceptional weatherability for durability during construction
• Fire resistance tested for construction joint (including curtain wall) systems in accordance with ASTM E 1966 (UL 2079), ASTM E 2307
• Firestop tested up to 3 hours in accordance with ASTM E 814 (UL 1479) and CAN/ULC S115
• Formulated as a re-enterable and repairable solution
• Halogen-free formula helps control spread of noxious gasses, smoke and flame
• Meets UL Water Leakage Test, W Rating (Class 1 requirements)
• Minimizes noise transfer (STC-Rating of 56 when tested in STC 56-rated wall assembly)
• Neutral cure � delivers higher adhesion with very little odor
• Offers compression and extension capability of �31% for dynamic and static construction joints
• Sealant is paintable with primer
• Self-leveling formula is optimal for horizontal applications, eliminating the need for tooling
• Single component sealer is ready to use with no mixing required