NGP 420NDKB 36" DKB-finish Aluminum Heavy Duty Surface, Automatic Door Bottom with Neoprene Seal is engineered for top-tier performance in commercial restroom applications. Constructed from Aluminum Alloy 6063 with a T5 temper, this product ensures durability and longevity, meeting BHMA certification standards for both heat and cold performance. With a maximum drop of 7/8", the automatic door bottom mounts on the push side of the door, providing an effective barrier against moisture and air infiltration. Its neoprene seal, made from synthetic EPDM rubber, delivers excellent abrasion resistance and memory, ensuring a reliable seal that lasts. This door bottom also features flame-resistant properties, making it a safe choice for environments requiring stringent fire safety standards. The 420NDKB is versatile, accommodating lengths from 11" to 60", with the option for field cutting for lengths over 36". For optimal sealing, it is recommended to use with a threshold; a nylon brush is advised for carpet applications without a threshold. Available in a sleek dark bronze finish, the NGP 420NDKB combines functionality with an aesthetic appeal, making it a perfect addition to any commercial restroom setup.
Attributes
Alternate Codes: 420NDKB 36IN, 420NDKB36IN
Application: Nylon Brush Recommended for Carpet Applications where no Threshold is Provided
BHMA: BHMA Certified to ANSI/BHMA A156.22 Performance Tests for Heat and Cold
Category: Door Accessories, Glass Aluminum Hardware, Thresholds & Seals
Certifications: A156.22, ANSI, ASTM E2235, ASTM E283, ASTM E90, BHMA, CAN/ULC-S104, IBC International Code 1008.1.3.4, NFPA 105, NFPA 252, NFPA 80, UL 10b, UL 10C, UL 1784
Color: Color is Black
Door Application: Thresholds & Seals
Door Width: 36"
Drop: 7/8" Max Drop
Finish: Dark Bronze Finish
Finish Color: Dark Bronze Anodized
Finish Description: Dark Bronze
Fire Rated: Flame-Resistant
Fire Rating: 180 min, 90 min
Flange Material: Dark Bronze Aluminum
Grade: Grade 1
Hardware: #10 x 1 1/2" Stainless Steel Sheet Metal Screws
Height: 2-5/16"
Insert Color: Black
Insert Material: Neoprene
Length: 36"
Manufacturer: National Guard Products
Material: Aluminum Alloy 6063, T5 Temper
Moisture Resistant: YES
Mounting: Push Side
Operating Temperatures: -81 to 275F (-62.7 to 135C
Quickship: Yes
Resistance: Good Resistance to Ozone, Sunlight and Aging
Series: 420N
Standard-0: CERTIFIED by UL to CAN/ULC-S104 and ANSI/UL10B, complies with NFPA 80 and NFPA 252 for application to Hollow Metal fire doors rated up to 3 Hrs., and Wood fire doors rated up to 90 minutes.
Standard-1: POSITIVE PRESSURE - CERTIFIED by UL to ANSI/UL10C, complies with IBC, NFPA 80 and NFPA 252 for application to Hollow Metal fire doors rated up to 3 Hrs., and Wood fire doors rated up to 90 minutes.
Standard-2: AIR INFILTRATION TESTED to ASTM E283, Standard Test Method for Determining Rate of Air Leakage Through Exterior Windows, Curtain Walls, and Doors.
Standard-3: ACOUSTICAL TESTED to ASTM E90 Standard Test Method for Laboratory Measurement of Airborne Sound Transmission Loss of Building Partitions and Elements, and ASTM E2235 Standard Test Method for Determination of Decay Rates for use in Sound Insulation Test Methods. Refer to information on pages G8 thru G10 of our Gasketing catalog for test result data.
Standard-4: SMOKE & 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 rated up to 3 hours, and Wood fire doors rated up to 90 minutes.
Standard-5: ANSI/BHMA CERTIFIED. Certified Gasketing complies with American National Standard for Door Gasketing and Edge Sealing Systems ANSI/BHMA A156.22 and is listed in the BHMA Certified Products Directory.
Standards: ANSI/BHMA Certified A156.22
Subtype: Weatherstrip
Temperature Range: Temperature Range -81°F to 275°F
Type: Automatic Door Bottom
Weather Rating: Moisture Resistant
Width: 15/16"
