Product Description
3M™ Fire and Water Barrier Tape is a high-performance elastomeric sealant tape engineered to protect building systems against fire, water, smoke, and noise. Designed for construction joints, through penetrations, and perimeter applications, it adheres instantly with high-tack bonding—even to damp surfaces.
Key Benefits
- Multi-Barrier Protection: Up to 4 hours of fire resistance in construction joints (ASTM E1966/UL 2079), 3 hours in perimeter joints (ASTM E2307), and 2 hours in through penetrations (ASTM E814/UL 1479).
- Water-Tight Seal: Immediately acts as a barrier against water intrusion and minimizes airborne sound (STC 54).
- High-Tack Adhesive: Bonds effectively to a wide array of materials, including damp substrates; exceeds AAMA 711 peel adhesion standards.
- Wide Temp Range: Can be installed from 0 °F (–18 °C) to 120 °F (49 °C); remains serviceable up to broad temperature extremes.
- Acoustic Barrier: Helps reduce noise transmission due to its STC 54-rated performance.
Best For
- Construction joint firestopping
- Perimeter joint sealing (curtain wall systems)
- Through-penetration fire & smoke protection
- Water intrusion prevention
- Noise attenuation in walls and floors
- Fast-track builds requiring immediate sealing
Product Properties
| Property | Specification |
|---|---|
| Fire Rating | Up to 4 hr (construction), 3 hr (perimeter), 2 hr (penetration) |
| Water Rating | Meets ASTM D6904 rain resistance |
| Sound Rating | STC 54 (airborne noise attenuation) |
| Temperature Range | Install: 0 °F–120 °F; Service: –40 °F to ??? |
| Adhesion | High-tack; bonds to damp & dry substrates; exceeds AAMA 711 |
| Substrate Suitability | Metal, concrete, gypsum, wood, masonry, plastic |




