NGP D620A Nylon Brush Seal wit...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$456.24
NGP D620A Nylon Brush Seal with Gray Brush and Anodized Aluminum Frame - 84 Inch Length

NGP D620A Nylon Brush Seal with Gray Brush and Anodized Aluminum Frame - 84 Inch Length

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Model: D620A-84
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$456.24
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NGP D620A Nylon Brush Seal with Gray Brush and Anodized Aluminum Frame - 84 Inch Length

Professional Door Sealing Solution for Fire-Rated Applications

The NGP D620A Nylon Brush Seal delivers professional-grade door sealing performance with an 84" length design featuring gray nylon brush filaments and anodized aluminum construction. This commercial door seal operates effectively across a temperature range of -70 F to 425 F and is approved for use on fire-rated metal doors up to 3 hours or wood doors up to 60 minutes. The aluminum alloy 6063 T5 temper frame provides durability while the polyamide synthetic polymer brush offers excellent abrasion resistance, flexibility and memory retention.

Professional Features & Benefits

  • Extended Length Coverage: 84" length provides comprehensive sealing for standard commercial door applications with single-piece installation convenience.
  • Fire-Rated Door Compatibility: Approved for use on fire-rated metal doors up to 3 hours or wood doors up to 60 minutes for code-compliant installations.
  • Wide Temperature Range: Operates effectively from -70 F to 425 F for reliable performance in diverse environmental conditions.
  • Durable Construction Materials: Aluminum alloy 6063 T5 temper frame with polyamide synthetic polymer brush provides long-term durability and performance.
  • Superior Brush Performance: Excellent abrasion resistance, flexibility and memory characteristics ensure consistent sealing over extended use cycles.
  • Moisture and Chemical Resistance: Moisture resistant construction retains insecticides well for pest control applications while maintaining sealing integrity.
  • Adjustable Installation: Slotted screw holes allow for precise positioning adjustment during installation with included #6 x 3/4" stainless steel sheet metal screws.
  • Environmental Compliance: REACH and RoHS compliant materials meet current environmental and safety regulations 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: Gasketing
  • Series: Nylon Brush Seal Series
  • Subcategory: Gaskets & Weatherstripping

Professional Applications

  • Fire-Rated Commercial Door Systems
  • Educational Facility Door Sealing
  • Healthcare Institution Environmental Control
  • Industrial Facility Dust and Debris Control
  • Office Building Energy Efficiency
  • Multi-Tenant Residential Fire Separation
  • Government Building Code Compliance

Why Choose NGP Quality?

NGP D620A Nylon Brush Seals deliver professional-grade reliability with aluminum alloy 6063 T5 temper construction and polyamide synthetic polymer brush technology rated for extreme temperature performance from -70 F to 425 F. REACH and RoHS compliant materials ensure environmental compliance while fire-rating approvals provide code-compliant installation confidence. Engineered for demanding commercial applications where dependable sealing performance and regulatory compliance are essential.

Product Specs

Product Group:
Door Trim and Accessories
Series:
Nylon Brush 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 D620A-84 – Frequently Asked Questions

1) Can the NGP D620A brush seal be used on a fire-rated door?
Yes. The D620A nylon brush seal is approved for fire-rated metal doors up to 3 hours and wood doors up to 60 minutes, so it can go on a labeled opening in a stairwell, corridor, or tenant separation without breaking the rating.
2) What is the difference between an NGP D620A brush seal and a Cal-Royal PG-601 vinyl insert gasket?
Both are aluminum-channel perimeter seals applied to the frame stop, but they seal by different means. The NGP D620A carries a gray polyamide nylon brush in an anodized 6063 T5 aluminum frame, so the filaments sweep the door face and tolerate -70 F to 425 F, dust, and abrasive debris. The Cal-Royal PG-601 is an aluminum channel with a vinyl insert, which compresses against the door for a continuous contact seal rather than a swept one. Choose the brush where doors drag, where dust or insects are the concern, or where heat is a factor; choose the vinyl insert where a soft compression seal against air and light is the goal.
3) Can I use a vinyl perimeter gasket instead of the NGP D620A on a fire-rated opening?
Not interchangeably. The NGP D620A is approved for fire-rated metal doors up to 3 hours or wood doors up to 60 minutes, and it is that approval, not the channel shape, that governs on a labeled opening. The Cal-Royal PG-601 is an aluminum channel perimeter gasket with a vinyl insert and is selected on its own listing for the opening in question. On a labeled door, match the seal to what the door and frame label permits rather than swapping on profile alone.
4) What length does the NGP D620A come in, and can I cut it down?
It is supplied in an 84 inch piece, which covers a standard 7 foot door height in one length. The frame is 6063 T5 aluminum, so it cuts cleanly with a miter saw or hacksaw for shorter openings. The screw holes are slotted, meaning you can shift the piece toward the door face after fastening to set brush contact.
5) Do I need to buy screws separately for the NGP D620A brush seal?
No. Fasteners come with it: #6 x 3/4 inch stainless steel sheet metal screws are included. Nothing else is required to hang the piece on a hollow metal or wood frame.
6) Will a nylon brush seal hold up in a boiler room or a walk-in freezer corridor?
The D620A is rated from -70 F to 425 F, which covers both ends of that range. The filaments are polyamide, so they keep their memory and resist abrasion through repeated door swings rather than taking a set like some foam or vinyl bulbs.
7) Should I use a brush seal or a vinyl-insert perimeter gasket on my doors?
Brush handles irregular gaps, dust, and light debris, and it keeps working at temperature extremes where vinyl goes stiff or soft, which is why the D620A is common on industrial and mechanical openings. A compression-style gasket with a vinyl insert, like the Cal-Royal PG-601 aluminum channel perimeter gasketing, seals tighter against air and sound on a door that closes consistently against a flat stop. Pick brush for sweep and debris control, vinyl for a positive compression seal.
8) For a warped or out-of-plumb door that will not close on a compression seal, which gasket works better?
A brush seal is the more forgiving option. The NGP D620A's polyamide filaments bridge an irregular gap and return to shape after repeated cycles thanks to their flexibility and memory characteristics, and its slotted screw holes let you shift the channel during install to chase an uneven reveal. A compression-style seal such as the Cal-Royal PG-601 with its vinyl insert depends on the door meeting the stop evenly along its length, so a twisted leaf will leave gaps at one end while binding at the other.
9) I need weatherstripping for a door sweep or shoe application - is the NGP D620A the right part?
No. The NGP D620A is a perimeter seal in an 84 inch length, sized to run the head or a jamb leg of a commercial opening and mounted to the frame with the included #6 x 3/4 inch stainless steel screws. It is not a bottom-of-door part. For the sill, look to a door shoe or automatic door bottom instead; Cal-Royal's PG-601 aluminum channel gasketing is cataloged within its Door Shoes Series line for perimeter and threshold-area sealing. Order the perimeter seal and the bottom seal as separate items to close the whole opening.
10) What finishes does the NGP D620A brush seal come in?
Two anodized aluminum frame finishes: mill aluminum and dark bronze. Both carry the gray nylon brush. Mill matches typical aluminum storefront and hollow metal frames; dark bronze is the one to order when the existing perimeter gasketing and door frames are dark anodized.
11) Will a brush seal help with pest control at the door?
Yes, that is one of the reasons this style gets specified. The D620A brush is moisture resistant and retains insecticides well, so treated brush at the perimeter or sweep line blocks insect entry as well as dust and drafts.
12) Does the NGP D620A meet RoHS and REACH requirements for a government or healthcare spec?
The D620A is built from REACH and RoHS compliant materials, which covers the environmental line items that show up on institutional and public-agency submittals. It is a commercial-grade product, not a residential weatherstrip.
13) Does the finish choice change how the NGP D620A compares to other aluminum-channel gaskets?
Only cosmetically. The NGP D620A frame is available in mill aluminum and dark bronze, both on the same anodized 6063 T5 aluminum extrusion with the same gray nylon brush, so sealing performance and the 3-hour metal door approval are identical between them. Pick mill aluminum to blend with clear-anodized storefront and hollow metal frames, dark bronze to match bronze-anodized entrances. A Cal-Royal PG-601 aluminum channel gasket is likewise an extruded aluminum housing, so the visual decision is about matching existing frame color across the building rather than about seal type.
How fast can I get the NGP D620A-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 D620A-84 come with a warranty?
Absolutely. The NGP D620A-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 D620A-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 D620A-84 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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