?unique=c07dd9d)
?unique=c07dd9d)
National Guard Products 108NA Neoprene Sponge Perimeter Weatherstrip Head-and-Jamb Set, Anodized Aluminum
National Guard Products (NGP) model 108NA is a neoprene sponge perimeter weatherstrip head-and-jamb set in an anodized aluminum frame carrier with a black closed-cell EPDM sponge insert. Each set includes one head piece and two jamb pieces, screw-applied to the door frame stop, and is sized to fit five standard opening configurations ranging from 3'0 x 7'0 through 8'0 x 8'0. The 108NA is engineered for commercial hollow metal and wood fire-rated door assemblies, delivering a continuous, compression-tight perimeter seal that controls air infiltration, smoke, and draft while satisfying UL certification requirements for positive-pressure fire doors rated up to 3 hours. Because every set is made to order, please allow 10 to 15 business days for production.
High-Performance Perimeter Weatherstrip Features
- UL-Certified Fire Door Rating: Certified by UL to CAN/ULC-S104 and ANSI/UL10B, complying with NFPA 80 and NFPA 252 for hollow metal fire doors up to 3 hours and wood fire doors up to 90 minutes.
- Positive-Pressure Fire Door Compliance: Certified by UL to ANSI/UL10C, meeting IBC, NFPA 80, and NFPA 252 requirements for positive-pressure hollow metal fire doors up to 3 hours and wood fire doors up to 90 minutes.
- Smoke and Draft Control Gasketing: Certified by UL to ANSI/UL10C and ANSI/UL1784 Category H, complying 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.
- Air Infiltration Control: NGP recommends the 108NA as a preferred product for minimum air leakage and a tight perimeter seal around commercial door openings.
- Patent-Pending Microcellular EPDM Insert: The synthetic EPDM rubber in a polypropylene thermoplastic matrix provides a closed-cell, advanced elastomeric foam construction that resists compression set and maintains a reliable seal over time.
- Wide Temperature Tolerance: Rated for service from -50°F to 275°F, making the 108NA suitable for exterior openings subject to extreme cold or heat exposure.
- Flame and Moisture Resistance: The EPDM insert is flame-resistant and moisture-resistant, supporting long-term performance in demanding commercial environments.
- Ozone, Sunlight, and Aging Resistance: Formulated to resist degradation from ozone exposure, UV sunlight, and general aging, extending service life on exterior and high-traffic openings.
- Very Good Abrasion Resistance, Tensile Strength, and Memory: The closed-cell foam returns to its original profile after repeated door cycles, maintaining a consistent seal without flattening.
- Aluminum Alloy 6063-T5 Frame Carrier: The extruded aluminum retainer is produced from Alloy 6063, T5 temper for a durable, corrosion-resistant carrier that accepts the anodized finish.
- Slotted Screw Holes for Field Adjustment: Pre-slotted mounting holes allow lateral adjustment during installation so installers can fine-tune seal compression without drilling new holes.
- Stainless Steel Fasteners Included: #6 x 3/4-inch stainless steel sheet metal screws are furnished with each set, eliminating the need to source separate hardware.
- Head-and-Jamb Set Convenience: Sold as a complete perimeter set (one head, two jambs) pre-cut for the selected opening size, minimizing field fabrication.
Technical Details
| Manufacturer | National Guard Products (NGP) |
| Model Number | 108NA |
| Product Type | Neoprene Sponge Perimeter Weatherstrip Head-and-Jamb Set |
| Finish | Anodized Aluminum |
| Insert Material | Black closed-cell microcellular EPDM sponge (synthetic EPDM rubber in polypropylene thermoplastic matrix) |
| Frame Carrier Material | Aluminum Alloy 6063, T5 Temper |
| Typical Profile Section | 1" x 1/2" |
| Set Contents | 1 head piece + 2 jamb pieces (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 | -50°F to 275°F |
| Fasteners Furnished | #6 x 3/4" Stainless Steel Sheet Metal Screws |
| Screw Holes | Slotted for field adjustment |
| Application Method | Surface applied to the door frame stop |
| UL Fire Door Certification | CAN/ULC-S104 and ANSI/UL10B; hollow metal up to 3 hours, wood up to 90 minutes; NFPA 80, NFPA 252 |
| Positive Pressure Certification | ANSI/UL10C; IBC, NFPA 80, NFPA 252; hollow metal up to 3 hours, wood up to 90 minutes |
| Smoke & Draft Control Certification | ANSI/UL10C and ANSI/UL1784 Category H; IBC, NFPA 105; S-labeled positive-pressure hollow metal doors up to 3 hours, wood up to 90 minutes |
| Compatible Door Types | Hollow Metal fire doors, Wood fire doors |
| Production Lead Time | 10 to 15 business days (made to order) |
Pro-Tip for Perimeter Sealing
The NGP 108NA mounts directly to the face of the door frame stop using the furnished #6 x 3/4-inch stainless steel sheet metal screws. Because the screw holes are slotted, installers can shift each section slightly inward or outward after initial placement to optimize compression of the EPDM sponge against the door face before fully tightening. Fitting the head piece first and then the two jamb pieces allows each joint to be trimmed cleanly at the corners. Verifying that the door closes without dragging on the insert and that no visible light gap appears around the perimeter confirms a properly set seal depth.
| 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 | Aluminum |
| 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 | Neoprene |
| Mounting Type | Screw Applied - Exp Screw, Surface Mounted |
Recently Viewed Items