NGP 120NDKB Aluminum Neoprene ...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$47.64
NGP 120NDKB Aluminum Neoprene Sponge Seal with EPDM Rubber - Dark Bronze Finish

NGP 120NDKB Aluminum Neoprene Sponge Seal with EPDM Rubber - Dark Bronze Finish

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Model: 120NDKB-36

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

$47.64
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NGP Aluminum Neoprene Sponge Seal with EPDM Rubber - Dark Bronze Finish

Professional Door Weatherstripping Solution

The NGP Aluminum Neoprene Sponge Seal delivers superior weatherproofing performance with aluminum alloy 6063 T5 temper construction and synthetic EPDM rubber in polypropylene thermoplastic matrix closed cell advanced elastomeric foam. Operating effectively in temperature ranges from -81 F to 275 F, this professional-grade seal features flame-resistant and moisture-resistant properties with excellent resistance to ozone, sunlight and aging. BHMA certified to ANSI/BHMA A156.22 performance tests for heat and cold, ensuring reliable performance in demanding commercial applications.

Professional Features & Benefits

  • Temperature Performance: Operates reliably from -81 F to 275 F for extreme weather conditions and diverse climate applications.
  • Advanced Material Construction: Synthetic EPDM rubber in polypropylene thermoplastic matrix closed cell advanced elastomeric foam provides superior sealing performance.
  • Aluminum Alloy Frame: 6063 T5 temper aluminum construction offers exceptional durability and corrosion resistance for long-term performance.
  • Superior Physical Properties: Very good abrasion resistance, tensile strength and memory ensure consistent sealing effectiveness over time.
  • Weather Resistance: Flame-resistant and moisture-resistant design with good resistance to ozone, sunlight and aging for outdoor applications.
  • BHMA Certification: Certified to ANSI/BHMA A156.22 performance tests for heat and cold, meeting professional industry standards.
  • Adjustable Installation: #6 x 3/4" stainless steel sheet metal screws furnished with slotted screw holes for precise adjustment during installation.
  • Patent Pending Technology: Features patent pending microcellular EPDM technology for enhanced sealing performance and longevity.

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: Gasketing
  • Series: Neoprene Sponge Seal Series
  • Subcategory: Gaskets & Weatherstripping

Professional Applications

  • Commercial Office Building Entrances
  • Educational Facility Exterior Doors
  • Healthcare Institution Climate Control
  • Retail Store Weather Sealing
  • Industrial Facility Environmental Protection
  • Multi-Tenant Residential Entry Systems
  • Government Building Energy Efficiency

Why Choose NGP Quality?

NGP weatherstripping products deliver professional-grade reliability with aluminum alloy 6063 T5 temper construction and patent pending microcellular EPDM technology. BHMA certified to ANSI/BHMA A156.22 performance standards with temperature range capability from -81 F to 275 F for demanding applications. Engineered for commercial environments where consistent weatherproofing and energy efficiency are essential.

Product Specs

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

NGP 120NDKB-36 – Frequently Asked Questions

1) What lengths does the NGP 120NDKB neoprene sponge seal come in?
The 120NDKB dark bronze seal is stocked in 36 inch and 48 inch lengths. A 36 inch piece covers a standard 3-0 door head; jambs on a 6-8 or 7-0 opening take the 48 inch pieces, usually two per opening, so count head and both jambs before you order.
2) Are mounting screws included with the NGP 120NDKB seal, or do I need to buy fasteners?
Screws come with it. Each piece is furnished with #6 x 3/4 inch stainless steel sheet metal screws, and the holes in the aluminum retainer are slotted so you can shift the seal in or out against the door face to set compression before you tighten down.
3) Is this a door bottom or a perimeter seal, and where on the frame does it go?
It is perimeter gasketing, not a door bottom. The 120NDKB mounts to the stop on the head and both jambs so the door closes against the sponge. For the gap under the door you still need a separate door bottom or sweep and, on an exterior opening, a threshold.
4) What is the difference between the NGP 120NDKB sponge seal and the Cal-Royal PG-601 perimeter gasketing?
Both are aluminum-channel perimeter seals for commercial door frames, but they differ in the sealing element. The NGP 120NDKB uses a synthetic EPDM rubber in a polypropylene thermoplastic matrix closed cell elastomeric foam carried in a 6063 T5 temper aluminum retainer, rated from -81 F to 275 F and BHMA certified to ANSI/BHMA A156.22 heat and cold performance tests. The Cal-Royal PG-601 is an aluminum channel perimeter gasketing with a vinyl insert. If the opening sees wide temperature swings, ozone or direct sunlight, the EPDM sponge on the 120NDKB is the material built for that exposure; a vinyl insert is the more conventional bulb material for interior and sheltered frames.
5) What is the dark bronze NGP 120NDKB seal actually made of?
The retainer is 6063 T5 temper aluminum alloy in a dark bronze finish. The sealing element is synthetic EPDM rubber in a polypropylene thermoplastic matrix, a closed cell elastomeric foam with very good abrasion resistance, tensile strength and memory, so it recovers its shape instead of taking a set after years of door slams.
6) I need perimeter weatherstripping for an exterior entrance that gets full sun all day. Which one holds up?
For that exposure, the NGP 120NDKB is the one specified for it. Its EPDM sponge element is flame resistant and moisture resistant with good resistance to ozone, sunlight and aging, and very good abrasion resistance, tensile strength and memory so it keeps its seal after repeated compression. It is BHMA certified to ANSI/BHMA A156.22 heat and cold performance tests and works from -81 F to 275 F. The Cal-Royal PG-601 is an aluminum channel perimeter gasketing that seals with a vinyl insert, which is the more common choice on frames that are not in direct weather.
7) Can the Cal-Royal PG-601 be used as a direct swap for the NGP 120NDKB?
Treat them as alternates rather than drop-in replacements. Both mount as aluminum channel perimeter seals on the frame stop, but the 120NDKB is a dark bronze finished aluminum retainer holding an EPDM sponge element and comes in 36 inch and 48 inch lengths, furnished with #6 x 3/4 inch stainless steel sheet metal screws and slotted holes for adjustment after mounting. The PG-601 carries a vinyl insert. Confirm the existing screw pattern and stop depth before swapping, since the retainer profiles and insert shapes are not interchangeable between the two.
8) Is the NGP 120NDKB meant for commercial openings or will it work on a house?
NGP lists it as a commercial product, and that is where it earns its keep: office entrances, school exterior doors, healthcare climate control, retail, industrial and multi-tenant residential entries. Nothing stops you from using it on a residential entry door, but you are paying for extruded aluminum and EPDM built for high-traffic commercial cycling.
9) Will dark bronze weatherstripping match my existing bronze anodized aluminum storefront doors?
The 120NDKB is supplied in a dark bronze finish on 6063 T5 aluminum, which is the standard companion to dark bronze anodized entrance frames and doors. Property managers standardizing a building usually spec it opening by opening in the same 36 inch and 48 inch cut lengths so replacements down the road stay consistent.
How fast can I get the NGP 120NDKB-36 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 120NDKB-36 come with a warranty?
Absolutely. The NGP 120NDKB-36 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 120NDKB-36?
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 120NDKB-36 from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support, and rewards on every order. Our team is always ready to help you choose the right product for your project.
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