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Pemko S773BL Adhesive Silicone Triple Finned Perimeter Fire/Smoke Gasketing - Black
The Pemko S773BL is an architectural-grade triple-finned adhesive perimeter seal designed to provide a high-efficiency barrier against smoke, fire, sound, and light. Extruded from high-temperature silicone, this gasketing remains effective in extreme environments ranging from -58°F to 450°F. Its innovative triple-fin design creates multiple points of contact with the door, significantly outperforming standard single-fin seals in sound attenuation and smoke draft control.
High-Performance & Life Safety Features
- Acoustic Excellence: When used with a Pemko automatic door bottom, this gasket achieves a 98% efficiency rating in sound attenuation, making it ideal for hotels, recording studios, and conference rooms.
- Triple-Fin Barrier: The three layers of silicone fins act as interlocking shields to block light and sound waves, ensuring maximum privacy and tranquility.
- Fire & Smoke Certified: Fully tested and approved under UL 10C (Fire), UL 1784 (Smoke), and ASTM E90 (Sound). It meets Category G, H, and J requirements for a wide range of fire-rated door assemblies.
- Extreme Durability: Made from cross-linked silicone polymer that is unaffected by sunlight, ozone, or UV rays. It is also impervious to fungus and mildew, ensuring a long-lasting commercial lifespan.
- Low Air Infiltration: Air leakage is tested at only .09 CFM/ft, providing an airtight seal that improves energy efficiency and building comfort.
Technical Specifications
- Manufacturer: Pemko (ASSA ABLOY)
- Model: S773BL (Black Silicone)
- Dimensions: 1/2" Wide x 3/8" High
- Available Lengths: 17', 18', 20', 21', and 25' coils.
- Adhesive: Pressure-sensitive high-strength acrylic adhesive.
- Ratings: BHMA Certified, GREENGUARD Gold Certified, and Warnock Hersey Listed.
Pro-Tip for Facility Managers
The Pemko S773 is the "problem solver" for hospitality guest rooms where light and noise complaints are common. To maintain NFPA 80 compliance, ensure your door clearances do not exceed 1/8 inch at the top and vertical edges. For the most effective acoustic seal, install the gasket on a clean, dry frame—cleaning with the included alcohol towelette is critical for the adhesive to bond properly.
| Gasketing Set Size | 17 ft Roll or 18 ft Roll or 20 ft Roll or 21 ft Roll or 25 ft Roll or 30 ft Roll or 250 ft Roll or 500 ft Roll |
| Brand | Pemko |
| Mounting Type | Adhesive Applied |
| Insert Material | Silicone, Triple Fin |
| Fire Rated | Fire Rated |
| Smoke Rated | Smoke Rated |
| Sound Rated | Sound Rated |
| Gasketing Finish | Black |
| Weatherstripping Type | Perimeter Gasketing |
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