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Pemko S773D Adhesive Silicone Triple Finned Perimeter Fire/Smoke Gasketing - Dark Brown
The Pemko S773D is an architectural-grade triple-finned adhesive perimeter seal specifically engineered to provide a high-efficiency barrier for fire-rated door assemblies. Extruded from high-temperature silicone, this gasketing maintains its integrity in extreme environments from -58°F up to 450°F. The dark brown finish is designed to blend seamlessly with stained wood doors and bronze-finished frames, while the innovative triple-fin design creates multiple shields to block light, smoke, and disruptive noise.
High-Performance & Life Safety Features
- Advanced Acoustic Barrier: When installed as part of a complete sealing system, this triple-fin gasket achieves a 98% efficiency rating in sound attenuation, making it perfect for executive offices and high-end hotel suites.
- Superior Triple-Fin Shielding: Three layers of silicone fins act as interlocking shields, creating multiple contact points to significantly diminish light leakage and sound infiltration.
- Life Safety Certified: Fully tested and approved under UL 10C (Fire) and UL 1784 (Smoke). It meets Category G, H, and J requirements for draft and smoke control on positive pressure openings.
- Discreet Aesthetics: The Dark Brown Silicone finish provides a professional, low-profile look that complements high-end hardware and dark-stained architectural wood doors.
- Low Air Infiltration: Air leakage is tested at an ultra-low .09 CFM/ft, providing an airtight seal that improves thermal comfort and lowers energy costs.
Technical Specifications
- Manufacturer: Pemko (ASSA ABLOY)
- Model: S773D (Dark Brown Silicone)
- Dimensions: 1/2" Wide x 3/8" High
- Roll Lengths: 17' & 20' (In Stock) | 18', 21', & 25' (Special Order)
- Adhesive: High-strength, pressure-sensitive acrylic adhesive.
- Certifications: BHMA Certified, GREENGUARD Gold Certified, and Warnock Hersey (Intertek) Listed.
Pro-Tip for Architectural Compliance
The Pemko S773D is a critical component for maintaining NFPA 80 compliance. For the gasket to perform optimally in an emergency, ensure your top and vertical door-to-frame clearances do not exceed 1/8 inch. Before applying the pressure-sensitive adhesive, the frame must be completely free of grease and dust; a quick wipe with an alcohol-based cleaner ensures a permanent, professional bond.
| 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 |
| Insert Material | Silicone, Triple Fin |
| Gasketing Finish | Dark Brown |
| Fire Rated | Fire Rated |
| Smoke Rated | Smoke Rated |
| Sound Rated | Sound Rated |
| Mounting Type | Adhesive Applied |
| Weatherstripping Type | Perimeter Gasketing |
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