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National Guard Products 160SDKB Silicone Dense Bulb Perimeter Weatherstrip Head-and-Jamb Set – Dark Bronze
National Guard Products (NGP) model 160SDKB is a silicone dense bulb perimeter weatherstrip set finished in Dark Bronze with a black dense silicone bulb insert. Engineered for demanding commercial and institutional openings, this head-and-jamb set is screw-applied directly to the frame stop and delivers an airtight, smoke-resistant, and fire-rated perimeter seal around the door. Each set includes one head piece and two jamb pieces, sized to the opening you select, 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 160SDKB is made to order with a typical lead time of 10–15 business days. It carries UL certifications for fire door applications on hollow metal doors rated up to 3 hours and wood doors rated up to 90 minutes, and is also certified for smoke and draft control under ANSI/UL1784 Category 'H' — making it one of the most specification-ready perimeter seals available for fire-rated commercial openings.
High-Performance Silicone Dense Bulb Weatherstrip Features
- Fire-Rated UL Certification: Certified by UL to CAN/ULC-S104 and ANSI/UL10B, complying 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.
- Positive Pressure Certification: Certified by UL to ANSI/UL10C, complying with IBC, NFPA 80, and NFPA 252 — satisfying the most stringent positive-pressure fire door requirements for hollow metal doors up to 3 hours and wood doors up to 90 minutes.
- Smoke and Draft Control: 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 rated up to 3 hours and wood fire doors rated up to 90 minutes.
- ANSI/BHMA A156.22 Certified: 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.
- Extreme Temperature Performance: Silicone bulb remains flexible across a temperature range of -81°F to 300°F — far exceeding the demands of most commercial door environments and fire suppression scenarios.
- FM200 and Halon Compatible: Specifically recommended for buildings and spaces that utilize FM200 or Halon clean-agent fire suppression systems, where chemical resistance is a critical requirement.
- Ozone, UV, and Aging Resistance: Dense silicone formulation resists environmental degradation from ozone exposure, ultraviolet light, and long-term aging, maintaining seal integrity over the life of the opening.
- Flame-Resistant and Moisture-Resistant: Synthetic rubber polymer construction provides inherent flame resistance and prevents moisture infiltration at the door perimeter.
- Aluminum Alloy Frame Carrier: Extruded from Aluminum Alloy 6063, T5 Temper for a strong, corrosion-resistant carrier that holds dimensional stability through repeated door cycles.
- Adjustable Installation: Screw holes are slotted for field adjustment, allowing precise alignment to the frame stop for an optimum seal without shimming or special tools.
- Furnished Hardware: #6 x 3/4-inch stainless steel sheet metal screws are included — no separate fastener sourcing required on the job site.
- Head-and-Jamb Set: Sold as a complete three-piece set (one head, two jambs) cut to the selected opening size, simplifying ordering and installation coordination.
Technical Details
| Manufacturer | National Guard Products (NGP) |
| Model Number | 160SDKB |
| Product Type | Silicone Dense Bulb Perimeter Weatherstrip Head-and-Jamb Set |
| Finish | Dark Bronze (DKB) |
| Bulb Insert Material | Dense Silicone, Black |
| Carrier Material | Aluminum Alloy 6063, T5 Temper |
| Typical Profile Section | 7/8 inch x 5/16 inch |
| Application Method | Screw applied to the frame stop |
| Fasteners Furnished | #6 x 3/4-inch Stainless Steel Sheet Metal Screws |
| Screw Holes | Slotted for adjustment |
| Set Configuration | 1 Head + 2 Jambs (complete perimeter set) |
| 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 |
| Temperature Range | -81°F to 300°F |
| UL Certifications | CAN/ULC-S104, ANSI/UL10B (standard fire), ANSI/UL10C (positive pressure), ANSI/UL1784 Category 'H' (smoke and draft control) |
| Compliance Standards | NFPA 80, NFPA 252, NFPA 105, IBC |
| BHMA Certification | ANSI/BHMA A156.22 – Door Gasketing and Edge Sealing Systems; listed in BHMA Certified Products Directory |
| Fire Door Ratings Supported | Hollow Metal: up to 3 Hours; Wood: up to 90 Minutes |
| Fire Suppression Compatibility | Recommended for FM200 and Halon fire suppression systems |
| Environmental Resistance | Flame-resistant, moisture-resistant, ozone-resistant, UV-resistant, aging-resistant |
| Availability | Made to Order — typical lead time 10–15 business days |
Pro-Tip for Perimeter Sealing
The NGP 160SDKB installs by screw-applying the aluminum carrier directly to the frame stop on the head and both jambs of the opening. The slotted screw holes allow you to shift the seal laterally after initial fastening so the dense silicone bulb contacts the door face with consistent compression around the full perimeter — critical for achieving the smoke and draft control performance required under ANSI/UL1784 Category 'H'. #6 x 3/4-inch stainless steel sheet metal screws are furnished with the set, so no additional hardware is needed for standard installation. Because the 160SDKB is a made-to-order product cut to your specified opening size, confirm the rough opening dimensions and door hand before placing your order to avoid field modifications.
| 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 | 7/8" x 5/16" |
| 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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