Product Description
3M™ Fire Barrier Water Tight Sealant 1000 SL is a self-leveling, one-part silicone firestop sealant designed for horizontal applications, providing both fire and water protection. It offers up to 4 hours of fire protection for through-penetrations and construction joints, while maintaining flexibility, excellent adhesion, and long-term durability under demanding conditions. This water-tight sealant is UV resistant and exhibits ±25% movement capability, making it ideal for dynamic construction joints.
Key Benefits
- Up to 4 Hour Firestop: Tested for through penetrations and joints in accordance with ASTM E814 (UL 1479), ASTM E1966 (UL 2079), and CAN/ULC-S115.
- Self-Leveling: Formulation ideal for horizontal joints and floor applications.
- Water-Tight Seal: Provides water protection in addition to firestop performance.
- Excellent Weatherability: UV resistant for both interior and exterior use.
- Durable Flexibility: ±25% movement capability accommodates building movement and thermal expansion.
- Excellent Adhesion: Bonds to concrete, metals, wood, plastics, and cable jacketing without primers.
- Easy Application: Single-component silicone allows for simple installation using conventional caulking equipment.
Best For
- Horizontal construction joints
- Floor penetrations
- Blank openings
- Pipe penetrations
- Mechanical and electrical service penetrations
- Interior and exterior dynamic joints
Product Properties
| Property | Specification |
|---|---|
| Application | Commercial Construction |
| Brand | 3M™ |
| Case Quantity | 10 Bags per Case |
| Composition | Silicone |
| Container Size (Imperial) | 4.5 Gal, 20 fl oz, 10.1 fl oz, 29 fl oz |
| Container Size (Metric) | 19 Liter, 591 mL, 300 mL, 857 mL |
| Fire Rating | Up to 4 Hours |
| Joint Fire Resistance Time | Up to 4 Hours |
| Material | Silicone |
| Maximum Service Temperature | 302 °F |
| Minimum Application Temperature | 40 °F |
| Storage Temperature | 40 °F to 90 °F |
| Movement Capability | ±25% |
| Product Form | Cartridge, Drum |
| Product Type | Sealant |
| Product Color | Light Gray |
| STC Rating | Up to 56 in a 6″ Steel Stud Wall |
| Smoke Development Index | 5 |
| Smoke Seal | Yes |
| Water-tight | Yes |
