NGP 170SDKB 36 Silicone Perime...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$66.49
NGP 170SDKB 36 Silicone Perimeter Seal with Concealed Fastener 36" Dark Bronze Fire-Rated Gasketing

NGP 170SDKB 36 Silicone Perimeter Seal with Concealed Fastener 36" Dark Bronze Fire-Rated Gasketing

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Model: 170SDKB 36
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$66.49
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NGP Silicone Perimeter Seal with Concealed Fastener 36" Dark Bronze Fire-Rated Gasketing

Professional Fire-Rated Perimeter Sealing Solution

The NGP Silicone Perimeter Seal delivers professional-grade fire and smoke protection with a 36" length and dark bronze finish. Constructed from aluminum alloy 6063 T5 temper with synthetic rubber polymer siloxane, this gasketing system operates reliably across temperature ranges from -100 F to 500 F while maintaining excellent flexibility and memory. BHMA certified to ANSI/BHMA A156.22 performance standards for heat, cold, air infiltration and smoke infiltration, making it ideal for fire suppression system applications including FM200 and Halon systems.

Professional Features & Benefits

  • 36" Length Configuration: Pre-cut 36" length provides convenient sizing for standard door applications and reduces field cutting requirements.
  • Extreme Temperature Performance: Operates from -100 F to 500 F while maintaining flexibility and sealing integrity for demanding environmental conditions.
  • Fire Suppression System Compatibility: Recommended for areas using FM200 or Halon Fire Suppression Systems with flame-resistant and moisture-resistant properties.
  • Premium Construction Materials: Aluminum alloy 6063 T5 temper frame with synthetic rubber polymer siloxane seal provides exceptional durability and longevity.
  • BHMA Performance Certification: Certified to ANSI/BHMA A156.22 performance tests for heat, cold, air infiltration and smoke infiltration ensuring code compliance.
  • Concealed Fastener Design: Snap-on cover conceals screw heads for clean, professional appearance while maintaining secure attachment.
  • Weather Resistance: Excellent resistance to ozone, UV and aging with moisture-resistant properties for long-term performance.
  • Adjustable Installation: Slotted screw holes allow for field adjustment during installation with furnished #6 x 3/4" stainless steel sheet metal screws.

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
  • Subcategory: Gaskets & Weatherstripping

Professional Applications

  • Fire-Rated Door Assemblies
  • Commercial Building Fire Separation
  • Healthcare Facility Fire Compartments
  • Educational Institution Fire Safety Systems
  • Industrial Facility Fire Protection
  • Government Building Fire Compliance
  • High-Rise Building Smoke Control Systems

Fire Suppression System Compatibility

This perimeter seal is specifically recommended for areas utilizing FM200 or Halon Fire Suppression Systems, providing flame-resistant and moisture-resistant properties essential for fire suppression environments. The siloxane polymer construction maintains sealing integrity under extreme temperature conditions while resisting degradation from fire suppression agents.

Why Choose NGP Quality?

NGP Silicone Perimeter Seals deliver professional-grade fire protection with aluminum alloy 6063 T5 temper construction and BHMA certification to ANSI/BHMA A156.22 performance standards. The synthetic rubber polymer siloxane material provides excellent flexibility and memory with superior resistance to ozone, UV and aging. Engineered for demanding commercial fire protection applications where reliable sealing performance and code compliance are essential.

Product Specs

Product Group:
Door Trim and Accessories
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 170SDKB 36 – Frequently Asked Questions

1) How many pieces of the NGP 170SD perimeter seal do I need for one door opening?
Each 170SDKB piece is a pre-cut 36 inch length, so plan by opening. A single 3-0 x 7-0 door needs one 36 inch piece across the head plus two lengths down the jambs, which means you order multiple pieces (the 36 inch piece covers the head; jambs at 84 inches need longer stock or two pieces each). Buy by the run you actually have to seal, not by the door.
2) Is this NGP silicone seal approved for use on a fire-rated door assembly?
The 170SD silicone perimeter seal is BHMA certified to ANSI/BHMA A156.22 performance tests for heat, cold, air infiltration and smoke infiltration, and it is intended for fire-rated door assemblies and smoke-control openings. That is the certification we hold on record for it; any specific opening still has to match the door and frame label.
3) Are mounting screws included with this gasketing, and can I adjust it after it's up?
#6 x 3/4 inch stainless steel sheet metal screws are furnished, and the retainer has slotted screw holes so you can shift the seal in or out against the door face during installation to dial in compression. No separate fastener order needed.
4) What is the difference between this silicone perimeter seal and a vinyl-insert aluminum channel gasket?
Two different duty levels. The NGP 170SD uses a siloxane seal rated -100 F to 500 F and is BHMA certified to A156.22 for heat, cold, air and smoke infiltration, which is what you want on a fire or smoke-rated opening. A vinyl-insert channel gasket such as the Cal-Royal PG-601 is the lighter-duty weatherseal choice for ordinary interior or exterior perimeter sealing where no fire or smoke performance is being specified. Vinyl does not take the temperature extremes silicone does.
5) What is the difference between the NGP 170SDKB silicone perimeter seal and the Cal-Royal PG-601 perimeter gasketing?
Both are aluminum-channel perimeter seals that mount to the frame stop, but the sealing element differs. The NGP 170SDKB uses a synthetic rubber polymer siloxane seal in an aluminum alloy 6063 T5 temper channel, rated from -100 F to 500 F and certified to ANSI/BHMA A156.22 for heat, cold, air infiltration and smoke infiltration, with a snap-on cover that conceals the screw heads. The Cal-Royal PG-601 is an aluminum channel perimeter gasketing with a vinyl insert. For fire-rated door assemblies and rooms served by FM200 or Halon suppression systems, the silicone insert of the 170SDKB is the one specified for that duty.
6) Can I use an aluminum channel gasket with a vinyl insert instead of the NGP 170SDKB on a fire door?
Not as a like-for-like swap. The NGP 170SDKB carries BHMA certification to ANSI/BHMA A156.22 for heat, cold, air infiltration and smoke infiltration and its siloxane insert holds flexibility from -100 F to 500 F, which is why it is the one used on fire-rated door assemblies, healthcare fire compartments and high-rise smoke control openings. The Cal-Royal PG-601 is a vinyl-insert aluminum channel perimeter gasket, suited to general perimeter weatherseal and light-seal work on non-rated openings. Match the seal to what the opening's rating requires.
7) Will a silicone perimeter seal hold up in a room protected by FM200 or Halon?
That is exactly the application NGP recommends the 170SD for. The synthetic rubber polymer siloxane seal is flame resistant and moisture resistant and is specifically recommended for areas using FM200 or Halon fire suppression systems, so it will not degrade from the agent the way some elastomers do.
8) What temperature range can this door gasket take? I have a freezer vestibule and a boiler room.
The siloxane seal runs from -100 F to 500 F and keeps its flexibility and memory across that band, which covers both cold rooms and high-heat mechanical spaces. It also resists ozone, UV and aging, so exterior exposure is not a problem.
9) Do the screws show after installing this NGP perimeter seal?
No. The 170SD uses a concealed fastener design: a snap-on cover hides the screw heads once the retainer is mounted, so the finished run shows a clean face. Useful where the gasketing is in a lobby or corridor and appearance matters.
10) I want a cleaner look on the frame face than an exposed-screw gasket gives. Which perimeter seal should I use?
The NGP 170SDKB is the one built for that. It uses a snap-on cover that conceals the screw heads after the channel is fastened, and the slotted screw holes let you adjust the seal position before the cover goes on; #6 x 3/4 inch stainless steel sheet metal screws are furnished. It is offered in a dark bronze finish in a pre-cut 36 inch length. The Cal-Royal PG-601 is a conventional aluminum channel gasket with a vinyl insert and does not carry a concealed-fastener cover.
11) What is this perimeter seal actually made of, and will it corrode on an exterior opening?
The retainer is aluminum alloy 6063 T5 temper with a dark bronze finish, and the sealing element is synthetic rubber polymer siloxane. Aluminum will not rust, and the siloxane is moisture resistant with good ozone and UV resistance, so it is suitable for exterior perimeters as well as interior fire separations.
12) Is the dark bronze the only finish, and will it match my existing bronze frames?
The 170SDKB is the dark bronze version of the 170SD silicone perimeter seal, so the whole run comes in one finish out of the box, which keeps a retrofit consistent across a floor of bronze-finish frames. The SD family is offered in other finishes under different suffixes if your openings are aluminum or clear-anodized.
13) Is this seal commercial-grade or is it a residential weatherstrip?
Strictly commercial. NGP builds the 170SD for commercial fire separation work, healthcare fire compartments, school and government buildings, industrial facilities and high-rise smoke control. It is not a residential-grade foam or vinyl weatherstrip.
How fast can I get the NGP 170SDKB 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 170SDKB 36 come with a warranty?
Absolutely. The NGP 170SDKB 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 170SDKB 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 170SDKB 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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