3M™ Fire Barrier Water Tight Sealant 1000 NS (non-slump) and 3M™ Fire Barrier Water Tight Sealant 1003 SL Silicone Sealant (self-leveling) are ready to use, one-component silicone elastomers. Both cure upon exposure to atmospheric humidity to form a flexible seal. Both sealants remain elastomeric and are weather resistant. They bond to most common construction materials.
- Firestop tested up to 3 hours in accordance with ASTM E 814 (UL 1479)
- Joint System Fire Resistance tested in accordance with ASTM E 1966 (UL 2079)
- 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
- ±25% dynamic joint movement capability
- Excellent adhesion
- Cures upon exposure to atmospheric humidity
- Applied with conventional caulking equipment
- Re-enterable/repairable
- Aids in the prevention of moisture and water migration through a building
- Light gray color