3M™ Fire Barrier Water Tight Sealant 1003 SL (Not for sale in CA)

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.