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Pemko S772D Double Finned Silicone Astragal & Meeting Stile Gasket, Dark Brown
The Pemko S772D is an architectural-grade, Self-Adhesive Double Finned Silicone Gasket designed for maximum protection on pairs of doors. Finished in Dark Brown (D), this high-performance seal features a unique double-fin profile that creates multiple air pockets to trap sound and block air infiltration. Engineered for "Smoke and Draft" control, the S772D is a critical component for fire-rated openings, cleanrooms, and sound-sensitive environments like recording studios or executive boardrooms.
High-Performance Features
- Double-Finned Barrier: The dual-fin design provides redundant sealing points, offering superior sound attenuation (ASTM E90 Tested) and smoke protection (UL1784 Tested) compared to single-bulb gaskets.
- Extreme Temperature Resilience: Maintains 100% flexibility from -58°F to 450°F. It will not become brittle in extreme cold or lose its shape in high-heat industrial applications.
- Superior Compression Set Resistance: Manufactured from high-grade silicone that resists "flattening" over time, ensuring the fins always return to their original shape to maintain a tight seal.
- Acoustic & Environmental Seal: Acts as a high-efficiency weatherization product, preventing heat loss and air infiltration, helping buildings achieve GREENGUARD Gold and LEED certifications.
- Low Closing Force: Despite its heavy-duty sealing capabilities, the silicone fins are engineered to collapse easily, ensuring the door closes and latches without requiring excessive force.
Technical Specifications
- Manufacturer: Pemko (ASSA ABLOY)
- Model Number: S772D (Dark Brown)
- Available Lengths: 84" (7 ft) or 96" (8 ft)
- Material: Siliconoseal (High-Grade Silicone)
- Fire Rating: UL10C Positive Pressure (Category H & J)
- Certifications: BHMA Certified, Smoke Tested (UL1784), Sound Tested (ASTM E90).
| Gasketing Set Size | 7 ft roll or 8 ft roll |
| Brand | Pemko |
| Mounting Type | Adhesive Applied |
| Fire Rated | Fire Rated |
| Smoke Rated | Smoke Rated |
| Sound Rated | Sound Rated |
| Insert Material | Silicone, Double Fin |
| Gasketing Finish | Dark Brown |
| Weatherstripping Type | Astragal |
Pemko S772 Self-Adhesive Astragal Installation Instructions.pdf
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