NGP 114SDKB 84 Overlapping Ast...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$120.87
NGP 114SDKB 84 Overlapping Astragal with Silicone Seal 84" Dark Bronze Aluminum

NGP 114SDKB 84 Overlapping Astragal with Silicone Seal 84" Dark Bronze Aluminum

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Model: 114SDKB 84

In Stock (leaves warehouse same day if ordered before 3pm ET)

$120.87
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NGP Overlapping Astragal with Silicone Seal 84" Dark Bronze Aluminum

Professional Door Sealing Solution for Commercial Applications

The NGP Overlapping Astragal with Silicone Seal delivers superior door sealing performance with aluminum alloy 6063, T5 temper construction and synthetic rubber polymer siloxane closed cell sponge seal. This 84" dark bronze astragal operates effectively in temperature ranges from -100 F to 500 F while maintaining excellent flexibility and memory. BHMA certified to ANSI/BHMA A156.22 performance tests for heat and cold, ensuring reliable performance in demanding commercial environments.

Professional Features & Benefits

  • 84" Length: Full-height coverage for standard commercial door applications with dark bronze aluminum finish for professional appearance.
  • Extreme Temperature Performance: Operates from -100 F to 500 F while maintaining flexibility and sealing integrity in harsh environmental conditions.
  • Premium Construction: Aluminum alloy 6063, T5 temper frame with synthetic rubber polymer siloxane closed cell sponge for exceptional durability and sealing performance.
  • BHMA Certification: Certified to ANSI/BHMA A156.22 performance tests for heat and cold ensuring compliance with commercial building standards.
  • Fire Suppression Compatibility: Recommended for areas using FM200 or Halon Fire Suppression Systems with flame resistant properties.
  • Weather Resistance: Excellent resistance to ozone, UV and aging with moisture resistant properties for long-term performance.
  • Adjustable Installation: #6 x 3/4" stainless steel sheet metal screws with slotted holes for precise field adjustment during installation.
  • Professional Finish: Dark bronze aluminum construction with gray silicone seal provides attractive appearance suitable for commercial applications.

Technical Specifications

  • Commercial/Residential: Commercial
  • Department: Door Hardware
  • Product Category: Door Trim and Accessories
  • Product Group: Door Trim and Accessories
  • Product Subgroup: Astragals, Gaskets and Weatherstripping
  • Product Type: Astragals
  • Subcategory: Gaskets & Weatherstripping

Professional Applications

  • Commercial Office Buildings
  • Educational Facilities
  • Healthcare Institutions
  • Retail Establishments
  • Industrial and Warehouse Facilities
  • Multi-Tenant Residential Properties
  • Government and Municipal Buildings

Why Choose NGP Quality?

NGP astragal products deliver professional-grade reliability with aluminum alloy 6063, T5 temper construction and BHMA certification to ANSI/BHMA A156.22 performance standards. The synthetic rubber polymer siloxane seal maintains excellent flexibility and memory across extreme temperature ranges from -100 F to 500 F. Engineered for demanding commercial applications where dependable sealing performance and fire suppression system compatibility are essential.

Product Specs

Product Group:
Door Trim and Accessories
Product Subgroup:
Astragals, Gaskets and Weatherstripping
Product Type:
Astragals
Subcategory:
Gaskets & Weatherstripping
Commercial/Residential:
Commercial
Product Category:
Door Trim and Accessories
Department:
Door Hardware

NGP 114SDKB 84 – Frequently Asked Questions

1) Will an NGP 114SDKB overlapping astragal seal a pair of doors, or do I need one on each leaf?
An overlapping astragal like the 114SDKB mounts on one leaf of a pair and laps over the meeting edge of the other, so the silicone seal compresses against the inactive leaf. One piece handles the meeting stile of the pair. That is the difference from a split astragal such as the Pemko 369, which puts a half on each leaf and seals where the two halves meet.
2) Is the NGP overlapping astragal BHMA certified for a spec job?
Yes, it is BHMA certified to the ANSI/BHMA A156.22 performance tests for heat and cold. A156.22 is the standard for door gasketing and edge seals, so it is the citation a specifier or facility engineer is looking for on a gasketing submittal.
3) My pair of doors has a mortise lock in the inactive leaf. Is this the right astragal?
No. The 114SDKB is a full-height gasketing astragal and does not have a lock cutout. Where a lock or cylinder passes through the meeting edge, use a lock astragal instead: the Trimco 5001 in stainless steel works with mortise or cylindrical locks, and the Trimco 5002, 1-9/16 by 6 inches, is for cylindrical locks. Those are short pieces at the lock, not full-height seals, so they solve a different problem than weather sealing.
4) What is the difference between an overlapping astragal and a split astragal for a pair of doors?
An overlapping astragal like the NGP 114SDKB mounts to one leaf and laps over the gap to the other leaf, so the meeting stile is covered by a single piece carrying its own seal - in the 114SDKB that is a silicone sponge seal in an aluminum alloy 6063 T5 extrusion. A split astragal such as the Pemko 369 is gasketing applied as two halves, one on each leaf, that meet at the gap instead of overlapping; the 369 uses a pile brush insert in a 13/32 inch by 11/32 inch aluminum section and is fire-rated. Choose the overlapping style when you want one leaf to close over the other and the seal to bridge the joint, and the split style when both leaves must be free of an overlapping lip.
5) What double door astragal uses a brush seal instead of a silicone seal?
The Pemko 300 Series is an adjustable astragal for double doors with a self-adjusting pile brush, and the Pemko 369 split astragal seal carries a pile brush insert in a 13/32 inch by 11/32 inch aluminum section. Both seal with brush pile rather than the silicone sponge used on the NGP 114SDKB, whose synthetic rubber polymer siloxane closed cell sponge holds flexibility from -100 F to 500 F and is BHMA certified to ANSI/BHMA A156.22 heat and cold tests. Brush pile tolerates ongoing sweep contact and misalignment; the silicone sponge compresses to a closed seal and carries the temperature rating.
6) Is a Trimco 5001 lock astragal a substitute for an NGP 114SDKB astragal?
No - they solve different problems despite sharing the word astragal. The Trimco 5001 is a stainless steel lock astragal used with mortise or cylindrical locks, and the Trimco 5002 is a 1-9/16 inch by 6 inch stainless lock astragal for cylindrical locks; these are short pieces that shield the latch area at the meeting stile. The NGP 114SDKB is a full 84 inch overlapping astragal in dark bronze aluminum with a continuous silicone seal running the height of the door for weather and smoke sealing. If the goal is to seal the pair against air and light, the short lock astragals do not do it; if the goal is to guard the lock at the gap, the 84 inch sealing astragal is not that part.
7) I need a fire-rated astragal for a pair of doors - which one should I look at?
The Pemko 369 split astragal seal is the fire-rated option, a 13/32 inch by 11/32 inch aluminum section with a pile brush insert applied to the meeting stiles. The NGP 114SDKB overlapping astragal is BHMA certified to ANSI/BHMA A156.22 performance tests for heat and cold and is recommended for areas using FM200 or Halon fire suppression systems, which is a different qualification than a door assembly fire rating. On a labeled opening where the hardware itself must carry the fire rating, the 369 is the one that states it.
8) What is the NGP 114SDKB astragal made of and how does the seal hold up in heat or cold?
The extrusion is aluminum alloy 6063, T5 temper in a dark bronze finish, with a gray closed cell sponge seal of synthetic rubber polymer siloxane (silicone). Rated service range is -100 F to 500 F with the seal keeping its flexibility and memory, and it resists ozone, UV, aging and moisture. That is the reason to choose silicone over a vinyl insert on an exterior or unconditioned opening.
9) What screws come with the NGP 114SDKB astragal and can I adjust it after it is on the door?
It ships with #6 x 3/4 inch stainless steel sheet metal screws, and the mounting holes are slotted so you can shift the astragal in or out to set seal compression against the other leaf before final tightening. Plan on drilling pilot holes in a hollow metal leaf.
10) Which astragal should I use in a room protected by FM200 or Halon fire suppression?
The NGP 114SDKB silicone astragal is the one recommended for spaces served by FM200 or Halon suppression systems, because the silicone seal is flame resistant and holds up to the discharge environment. Data centers, telecom rooms and archive vaults are the usual openings.
11) How does an overlapping astragal compare to a brush or T-astragal on a pair of doors?
Three different jobs. The NGP 114SDKB laps over the meeting edge with a compression silicone seal, which is the choice for smoke, light and weather control across a wide temperature range. A pile brush type like the Pemko 300 Series adjustable astragal or the 369 split astragal sweeps the gap instead of compressing against it, which is quieter on doors in constant use. A T-astragal such as the Cal-Royal EAST-501 with a vinyl insert sits in the gap between leaves rather than lapping one over the other.
12) Which lock astragal do I use with a mortise lock versus a cylindrical lock?
The Trimco 5001 lock astragal in stainless steel is for use with mortise or cylindrical locks, so it covers both lock types. The Trimco 5002, also stainless steel, is sized 1-9/16 inch by 6 inch and is specified for cylindrical locks. If the pair carries a mortise lock, the 5001 is the one that lists that application.
13) What is a vinyl insert astragal and how does it compare to a silicone seal astragal?
The Cal-Royal EAST-501 is an aluminum T-astragal with a vinyl insert for double doors - a T-shaped extrusion that sits in the gap with a flexible vinyl bulb doing the sealing. The NGP 114SDKB instead uses a synthetic rubber polymer siloxane closed cell sponge in an aluminum alloy 6063 T5 extrusion, rated -100 F to 500 F with resistance to ozone, UV and aging, and is recommended where FM200 or Halon fire suppression systems are in use. The T-astragal profile is the choice when the gap is sealed from between the leaves; the overlapping profile laps one leaf over the other and puts the silicone against the face of the opposite door.
14) The gap between our double doors varies from top to bottom - what astragal handles that?
The Pemko 300 Series is an adjustable astragal with a self-adjusting pile brush for double doors, so the brush takes up variation across an uneven meeting stile. The NGP 114SDKB gets its adjustment at install instead: it fastens with #6 x 3/4 inch stainless steel sheet metal screws through slotted holes so the extrusion can be set in the field before the screws are driven home. The 300 Series adjusts continuously as the doors move; the 114SDKB is set once and holds its position.
15) Will the dark bronze NGP astragal match dark bronze door hardware and storefront?
The 114SDKB is dark bronze anodized-look aluminum with a gray silicone seal, so the metal reads with dark bronze frames, closers and pulls. The seal itself is gray, not bronze, which is worth knowing if you are matching an aluminum storefront where the gasket line will be visible from the pull side. Dark bronze is the only finish this astragal is offered in.
16) Is this astragal suitable for apartment corridor and commercial entry doors, or is it a residential product?
It is a commercial-duty product, used on office buildings, schools, healthcare, retail, industrial and warehouse space, multi-tenant residential and government buildings. For a property manager standardizing a building, the aluminum body and silicone seal hold up on high-traffic pairs where a vinyl insert would go brittle.
How fast can I get the NGP 114SDKB 84 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the NGP 114SDKB 84 come with a warranty?
Absolutely. The NGP 114SDKB 84 is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the NGP 114SDKB 84?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
Why buy the NGP 114SDKB 84 from ZenSupply?
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