NGP 340P Self-Adhesive Pile As...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$12.72
NGP 340P Self-Adhesive Pile Astragal, 36 Inch, Gray Primer

NGP 340P Self-Adhesive Pile Astragal with 3/16" Projection - 36 Inch Gray Primer

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Model: 340P

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

$12.72
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NGP Self-Adhesive Pile Astragal with 3/16" Projection - 36 Inch Gray Primer

Professional Door Sealing Solution

The NGP Self-Adhesive Pile Astragal provides effective door sealing with a 3/16" projection design for commercial applications. This 36-inch astragal features polypropylene pile in gray primer finish, offering reliable weatherstripping performance with convenient self-adhesive installation. The durable construction ensures long-lasting sealing performance for professional door hardware applications.

Professional Features & Benefits

  • Precise Projection: 3/16" projection provides optimal sealing contact for effective weatherstripping performance.
  • Standard Length: 36-inch length accommodates standard door widths for versatile installation options.
  • Durable Pile Material: Polypropylene pile construction offers excellent resilience and weather resistance for long-term performance.
  • Professional Finish: Gray primer finish provides a neutral appearance suitable for various door and frame finishes.
  • Self-Adhesive Installation: Convenient adhesive backing eliminates the need for mechanical fasteners and simplifies installation.
  • Commercial Grade: Designed for commercial applications where reliable door sealing is essential.
  • Weatherstripping Performance: Effective barrier against air infiltration, moisture, and debris for improved building envelope performance.

Technical Specifications

  • Commercial/Residential: Commercial
  • Department: Door Hardware
  • Product Category: Door Trim and Accessories
  • Product Group: Door Trim and Accessories
  • Product Subgroup: Door Bottom Sweeps and Door Shoes
  • Product Type: Door Shoes
  • 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 door sealing products deliver professional-grade reliability with polypropylene pile construction and precise 3/16" projection dimensions for consistent performance. The self-adhesive design simplifies installation while maintaining commercial-grade sealing effectiveness. Engineered for demanding commercial applications where dependable weatherstripping performance is 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 340P – Frequently Asked Questions

1) What is an NGP 340P pile astragal used for on a commercial door?
The 340P is a self-adhesive pile weatherseal that closes the gap at a door opening, blocking air infiltration, moisture and debris. The pile is polypropylene with a 3/16 inch projection, so it bridges a small gap and sweeps against the mating surface rather than compressing like a solid bulb seal. It comes 36 inches long in a gray primer finish and is built for commercial openings.
2) Will a 36 inch astragal cover a full commercial door height?
No. At 36 inches the 340P covers a 3 foot run, which is well short of a standard 80 or 84 inch door edge. Use it where you are sealing a partial run, or plan on more than one piece for a full-height application. Measure the run you actually need to seal before ordering quantity.
3) The gap between our pair of doors is inconsistent from top to bottom. Is there an astragal that adjusts?
The Pemko 300 Series is an adjustable astragal with a self-adjusting pile brush for double doors, so the brush takes up variation in the meeting stile gap along the height of the opening. The NGP 340P is a fixed 3/16 inch projection pile astragal, which suits a pair whose gap is consistent and within that projection. On a warped or out-of-square pair, the adjustable 300 Series is the one that seals top to bottom.
4) What is the difference between the NGP 340P pile astragal and the Pemko 369 split astragal?
Both seal a double door meeting stile with a pile brush, but they are built differently. The NGP 340P is a self-adhesive pile astragal with a 3/16 inch projection in gray primer, so it sticks to the door face with no fasteners. The Pemko 369 is a split astragal seal with a pile brush insert in an aluminum carrier measuring 13/32 inch by 11/32 inch, and it is fire-rated. On a labeled opening where the astragal has to carry the rating, the 369 is the one that answers the inspector; where you are adding a light air and dust seal to an existing pair, the 340P goes on without drilling.
5) I need an astragal that covers the gap between a pair of doors, not just a brush seal. What should I use instead of the NGP 340P?
Use an aluminum T-astragal such as the Cal-Royal EAST-501, which is an aluminum T-astragal with a vinyl insert for double doors. The T-shaped extrusion physically overlaps the meeting stiles and closes the gap with a rigid body plus a vinyl sealing insert. The NGP 340P is a pile astragal with a 3/16 inch projection and self-adhesive backing, so it seals with polypropylene pile against the mating leaf rather than bridging the gap with a rigid section.
6) Will the NGP 340P protect the lock area on a pair of doors from being jimmied?
No. The 340P is a self-adhesive polypropylene pile astragal with a 3/16 inch projection, and its job is sealing against air, moisture and debris. For latch protection, the Trimco 5001 lock astragal is stainless steel and is used with mortise or cylindrical locks, and the Trimco 5002 lock astragal is stainless steel at 1-9/16 inch by 6 inch for use with cylindrical locks. Those are short guard plates at the lock, not full-height weatherseals, so a locksmith hardening an opening and a contractor sealing one are buying two different parts.
7) Is a self-adhesive pile astragal enough for a fire-rated pair of doors?
For a labeled pair, specify an astragal that carries the rating: the Pemko 369 is a split astragal seal with a pile brush insert in a 13/32 inch by 11/32 inch aluminum carrier and is fire-rated. The NGP 340P is a commercial self-adhesive pile astragal used for air, moisture and debris sealing on interior and exterior commercial openings such as offices, schools, healthcare and multi-tenant residential buildings. Match the part to what the door label requires.
8) Can I standardize one pile astragal across all the doors in my building?
The 340P is a single model at one size, 36 inches with a 3/16 inch projection in gray primer, so every piece you order is identical. That works for standardizing when your openings all have the same gap. Where gaps vary door to door, an adjustable type like the Pemko 300 Series covers a range instead of one fixed projection.
9) We want a mechanically fastened astragal rather than an adhesive one. What are the options?
The Cal-Royal EAST-501 is an aluminum T-astragal with a vinyl insert for double doors, and the Pemko 369 is a split astragal seal with a pile brush insert in a 13/32 inch by 11/32 inch aluminum carrier. Both use an aluminum carrier that mounts to the door. The NGP 340P uses adhesive backing instead of mechanical fasteners, which is what makes it a quick retrofit on doors you do not want to drill.
10) What is the difference between the Trimco 5001 and 5002 lock astragals?
Both are stainless steel lock astragals. The Trimco 5001 is specified for use with mortise or cylindrical locks, so it covers openings on either lock type. The Trimco 5002 measures 1-9/16 inch by 6 inch and is specified for use with cylindrical locks. If the pair carries mortise locks, the 5001 is the one that matches.
11) Will the gray primer finish on the NGP 340P show against a painted frame?
Gray primer is a neutral base finish, so it reads flat against most door and frame colors and takes a topcoat if you want it to disappear. On a job where the seal has to match a specific painted or anodized frame, that is the practical reason to pick this one over a bright metal carrier.
12) How does polypropylene pile hold up in a high-traffic building?
Polypropylene pile resists weather and keeps its resilience through repeated door cycles, which is why it is used on commercial openings rather than a soft foam seal. The 340P is specified for commercial use, and it is common in offices, schools, healthcare, retail, warehouses and multi-tenant residential where the same seal has to be repeated across many doors.
How fast can I get the NGP 340P 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 340P come with a warranty?
Absolutely. The NGP 340P 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 340P?
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 340P 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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