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National Guard Products 110SDKB Silicone Sponge Perimeter Weatherstrip Head-and-Jamb Set – Dark Bronze
National Guard Products (NGP) model 110SDKB is a perimeter door weatherstrip head-and-jamb set finished in Dark Bronze with a black closed-cell microcellular silicone sponge insert. Each set includes one head piece and two jamb pieces, screw-applied directly to the frame stop, and is available in five standard opening sizes: 3'0 x 7'0, 4'0 x 7'0, 6'0 x 7'0, 6'0 x 8'0, and 8'0 x 8'0. The 110SDKB is engineered for demanding commercial and institutional openings where fire-rated performance, smoke and draft control, air infiltration reduction, and long-term insert durability are required. It is made to order with a typical lead time of 10–15 business days.
High-Performance Perimeter Weatherstrip Features
- Premium Aluminum Extrusion: Carrier is extruded from Aluminum Alloy 6063, T5 Temper for a strong, corrosion-resistant frame that holds precise tolerances on the door stop.
- Patent-Pending Microcellular Silicone Sponge Insert: The black closed-cell sponge insert delivers excellent flexibility and memory, compressing under door pressure and rebounding to a consistent seal cycle after cycle.
- Extreme-Temperature Performance: Rated from -81°F to 300°F, the silicone insert remains flexible at temperature extremes that would stiffen or crack standard vinyl or EPDM seals.
- Flame- and Moisture-Resistant: The closed-cell silicone construction resists moisture absorption while meeting the flame-resistance requirements of UL-certified fire door assemblies.
- Superior Ozone, UV, and Aging Resistance: Silicone chemistry provides outstanding resistance to ozone, ultraviolet radiation, and long-term environmental aging, making the 110SDKB well-suited for exterior and high-exposure interior openings.
- Recommended for FM200 and Halon Fire Suppression Environments: NGP specifically recommends this weatherstrip for rooms protected by FM200 or Halon gaseous fire suppression systems, where gasket integrity during a suppression event is critical.
- UL-Certified Fire-Rated and Positive-Pressure Performance: Certified by UL to CAN/ULC-S104, ANSI/UL10B, and ANSI/UL10C; complies with NFPA 80 and NFPA 252 for hollow metal fire doors rated up to 3 hours and wood fire doors rated up to 90 minutes.
- Smoke and Draft Control Gasketing: Certified by UL to ANSI/UL10C and ANSI/UL1784 Category 'H'; complies with IBC and NFPA 105 for use on 'S'-labeled positive-pressure hollow metal fire doors up to 3 hours and wood fire doors up to 90 minutes.
- ANSI/BHMA A156.22 Certified: Gasketing is independently certified to the American National Standard for Door Gasketing and Edge Sealing Systems and listed in the BHMA Certified Products Directory, including performance tests for heat and cold.
- Air Infiltration Control: NGP designates the 110SDKB as a recommended product for minimum air leakage and a tight perimeter seal, supporting energy code compliance goals.
- Slotted Screw Holes for Field Adjustment: Slotted mounting holes allow precise positioning of the weatherstrip on the frame stop, accommodating minor variations in door alignment without special tools.
- Stainless Steel Fasteners Included: #6 x 3/4" stainless steel sheet metal screws are furnished with each set, resisting corrosion in exterior and high-humidity applications.
- Dark Bronze Finish: The Dark Bronze anodized-look aluminum finish coordinates with a wide range of commercial door hardware finishes and architectural millwork.
Technical Details
| Manufacturer | National Guard Products (NGP) |
| Model Number | 110SDKB |
| Product Type | Perimeter Door Weatherstrip, Head-and-Jamb Set |
| Finish | Dark Bronze |
| Insert / Seal Material | Patent-Pending Microcellular Closed-Cell Silicone Sponge (Black) |
| Carrier Material | Aluminum Alloy 6063, T5 Temper |
| Typical Profile Section | 1" x 1/2" |
| Set Contents | 1 Head Piece + 2 Jamb Pieces |
| Available Opening Sizes | 3'0 x 7'0, 4'0 x 7'0, 6'0 x 7'0, 6'0 x 8'0, 8'0 x 8'0 |
| Application Method | Screw-applied to the frame stop |
| Fasteners Furnished | #6 x 3/4" Stainless Steel Sheet Metal Screws |
| Screw Holes | Slotted for field adjustment |
| Temperature Range | -81°F to 300°F |
| Fire Rating – Hollow Metal Doors | Up to 3 Hours (UL Certified: CAN/ULC-S104, ANSI/UL10B, ANSI/UL10C) |
| Fire Rating – Wood Doors | Up to 90 Minutes (UL Certified) |
| Smoke & Draft Control | UL Certified to ANSI/UL10C and ANSI/UL1784 Category 'H'; complies with IBC and NFPA 105 |
| Positive Pressure Certification | ANSI/UL10C; complies with IBC, NFPA 80, and NFPA 252 |
| BHMA Certification | ANSI/BHMA A156.22 (Door Gasketing and Edge Sealing Systems), including Heat and Cold Performance Tests; listed in BHMA Certified Products Directory |
| Applicable Standards | CAN/ULC-S104, ANSI/UL10B, ANSI/UL10C, ANSI/UL1784, ANSI/BHMA A156.22, NFPA 80, NFPA 252, NFPA 105, IBC |
| Suitable for FM200 / Halon Suppression Rooms | Yes – NGP recommended |
| Flame Resistant | Yes |
| Moisture Resistant | Yes |
| Ozone / UV / Aging Resistance | Excellent |
| Stocking Status | Made to Order |
| Lead Time | 10–15 Business Days |
Pro-Tip for Perimeter Sealing
The NGP 110SDKB is surface-applied directly to the face of the door frame stop, requiring no mortising or routing. The slotted screw holes allow you to shift the weatherstrip inward or outward along the stop face to dial in consistent compression of the silicone sponge insert across the full height of both jambs and across the head. The furnished #6 x 3/4" stainless steel sheet metal screws drive directly into standard hollow metal or wood frames. For fire-rated openings, always verify that the weatherstrip is installed in accordance with the requirements of the applicable UL-certified assembly and the door and frame manufacturer's installation instructions to maintain the rating.
| Gasketing Set Size | 3'0 x 7'0 Set or 4'0 x 7'0 Set or 6'0 x 7'0 Set or 6'0 x 8'0 Set or 8'0 x 8'0 Set |
| Brand | National Guard Products |
| Housing Finish | Dark Bronze |
| Smoke Rated | Smoke Rated |
| Weatherstripping Type | Perimeter Gasketing |
| Housing Size | 1" x 1/2" |
| Insert Color | Black |
| Fasteners | #6 x 3/4" Stainless Steel Sheet Metal Screws Furnished |
| Fire Rated | Fire Rated |
| Insert Material | Silicone |
| Mounting Type | Screw Applied - Exp Screw, Surface Mounted |
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