Pemko S44 Fire and Smoke Gaske...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$134.10
$23.81
Pemko S44 Fire and Smoke Gasketing with SiliconSeal Technology - Adhesive-Backed Door Sealing

Pemko S44 Fire and Smoke Gasketing with SiliconSeal Technology - Adhesive-Backed Door Sealing

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Model: S44BL17
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$134.10
$23.81
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Pemko S44 Fire and Smoke Gasketing with SiliconSeal Technology - Adhesive-Backed Door Sealing

Professional Fire-Rated Door Sealing Solution

The Pemko S44 fire and smoke gasketing provides superior sealing performance for fire-rated door assemblies with its advanced SiliconSeal technology. This adhesive-backed gasketing compresses to seal gaps up to 1/16"; while beginning compression at 5/16", delivering extremely low closing force for smooth door operation. Extruded from high-temperature silicone, it maintains effectiveness between -58-Degree Fahrenheit and 450-Degree Fahrenheit while meeting UBC 7-2 and UL 1784-01 smoke testing requirements and NFPA 105 standards.

Professional Features & Benefits

  • Precision Gap Sealing: Seal begins compressing at 5/16"; and compresses to seal up to a 1/16"; gap for optimal fire and smoke containment.
  • High-Temperature Performance: SiliconSeal technology remains effective between -58-Degree Fahrenheit and 450-Degree Fahrenheit for reliable performance across temperature extremes.
  • Superior Air Infiltration Control: ASTM E-283-04 tested with only .09 CFM per foot of crack for exceptional sealing performance.
  • Extremely Low Closing Force: Designed for tighter frames while maintaining smooth door operation with minimal resistance.
  • Multiple Fire Door Compatibility: Category H and J rated for steel frames, hollow metal doors up to 3 hours, wood and plastic composite doors up to 1-1/2 hours, and wood core doors up to 20 minutes.
  • Weather and Environmental Resistance: Self-extinguishing, non-toxic, and unaffected by sunlight, ozone, ultraviolet rays, fungus, and mildew.
  • Multiple Length Options: Available in 17, 18, 20, 21, 25, 204, and 510 ft. coils for various project requirements.
  • Manufacturer Warranty: 2 Year warranty for added confidence and protection.

Technical Specifications

  • ANSI/BHMA: Air Infiltration Tested, Intertek Testing (Warnock Hersey), Sound Tested- ASTM E90, BHMA Certified, Smoke Tested- UL1784, Fire Rated UL10C- Positive Pressure, Underwriters Laboratory 4L10, Greenguard Gold Certified
  • Application: Door Frames to Seal Top and Sides of Door
  • Commercial/Residential: Commercial
  • Department: Door Hardware
  • Features: Self-Extinguishing, Non-Toxic, Impervious to Fungus and Mildew
  • PDF:Pemko S44 Installation Instructions: https://zensupply.com/content/pdf/pemko/AADSS1052190&.pdf
  • Product Category: Door Trim and Accessories
  • Product Dimension: H: 5/16", W: 7/16";
  • Product Group: Door Trim and Accessories
  • Product Model: S44
  • Product Subgroup: Astragals, Gaskets and Weatherstripping
  • Product Substrate: Silicone
  • Product Type: Gaskets
  • Subcategory: Gaskets & Weatherstripping
  • Warranty: 2 Year

Professional Applications

  • Commercial Fire-Rated Door Assemblies
  • Healthcare Facility Smoke Compartments
  • Educational Institution Fire Safety Systems
  • High-Rise Building Egress Routes
  • Industrial Facility Fire Barriers
  • Government and Municipal Fire Doors
  • Multi-Tenant Residential Fire Separations

Why Choose Pemko Quality?

Pemko S44 gasketing delivers professional-grade fire and smoke sealing with SiliconSeal technology tested to meet stringent UBC 7-2, UL 1784-01, and NFPA 105 standards. The high-temperature silicone construction provides reliable performance from -58-Degree Fahrenheit to 450-Degree Fahrenheit while maintaining air infiltration of only .09 CFM per foot of crack with 2 Year warranty coverage. Engineered for demanding fire safety applications where dependable sealing performance and code compliance are essential.

Product Specs

Features:
Self-Extinguishing, Non-Toxic, Impervious to Fungus and Mildew
Application:
Door Frames to Seal Top and Sides of Door
Warranty:
2 Year
Product Group:
Door Trim and Accessories
Product Subgroup:
Astragals, Gaskets and Weatherstripping
Product Type:
Gaskets
Subcategory:
Gaskets & Weatherstripping
ANSI/BHMA:
Air Infiltration Tested, Intertek Testing (Warnock Hersey), Sound Tested- ASTM E90, BHMA Certified, Smoke Tested- UL1784, Fire Rated UL10C- Positive Pressure, Underwriters Laboratory 4L10, Greenguard Gold Certified
Commercial/Residential:
Commercial
Product Model:
S44
Product Dimension:
H: 5/16", W: 7/16"
Product Category:
Door Trim and Accessories
Product Substrate:
Silicone
Department:
Door Hardware

Pemko S44BL17 – Frequently Asked Questions

1) How big a gap between the door and frame will the Pemko S44 gasketing actually seal?
The S44 silicone seal starts compressing at 5/16 inch and squeezes down to close a gap as small as 1/16 inch, so it works on openings where the door-to-frame clearance falls somewhere in that band. If your door sits more than 5/16 inch off the stop when closed, the door face never reaches the seal and you have a frame or hinge problem to fix first, not a gasketing problem. On the tight end, a 1/16 inch gap is still fully sealed rather than the gasket bottoming out and holding the door open.
2) Can Pemko S44 gasketing be used on the bottom of a door, or only the head and jambs?
Head and jambs only. The S44 is applied to the door frame to seal the top and sides of the door, so it handles the perimeter stop but not the sill. For the bottom of the opening you need a separate part, either a door bottom sweep mounted to the door face or an automatic door bottom mortised or surface mounted into the door, plus a threshold if the fire and smoke assembly calls for one. Ordering S44 for a full opening and expecting it to cover the underside of the door is the most common mistake on this item.
3) What fire door assemblies is Pemko S44 gasketing rated for, and for how many hours?
S44 carries Category H and J ratings, which cover steel frames and hollow metal doors up to 3 hours, wood and plastic composite doors up to 1-1/2 hours, and wood core doors up to 20 minutes. Match the gasketing to the door leaf you have, not just the frame: a 3 hour hollow metal opening and a 20 minute wood core opening both take S44, but the wood core door caps out at 20 minutes regardless of the seal. It is fire rated to UL10C positive pressure and listed under Underwriters Laboratory 4L10.
4) Will Pemko S44 gasketing satisfy a smoke seal requirement on a smoke barrier door in a hospital?
S44 is smoke tested to UL 1784 and meets UBC 7-2 and NFPA 105, which is the standard set an inspector looks for on a smoke and draft control assembly. It is also BHMA certified and third party tested by Intertek (Warnock Hersey). That covers the perimeter of the opening at head and jambs; the door bottom on a smoke barrier still has to be addressed with its own sealing part, and cross corridor pairs need the meeting stile handled as well.
5) Should I use adhesive-backed gasketing like the Pemko S44 or a kerf-mounted seal on my existing frames?
Adhesive backed is the retrofit answer. S44 sticks to the face of the frame stop, so you can seal an opening that is already hung and painted without routing a kerf, drilling, or pulling the frame. Kerf gasketing needs a slot milled into the stop, which realistically means new frames or a shop operation. The tradeoff is surface preparation: an adhesive seal only holds on a clean, dry, sound stop, and it sits proud of the stop where a kerf seal is recessed. On a fleet of existing fire doors that have to be brought into compliance, adhesive backed is what gets the job done in a day.
6) Will adding Pemko S44 gasketing keep my fire door from latching or make it hard to close?
The S44 silicone is extruded for extremely low closing force, so it is the profile to reach for on tighter frames where a stiffer bulb seal would push the door back off the latch. That matters most on doors with a closer set light for accessibility and on openings that already fight stack pressure in a stair or elevator lobby. It is still a compression seal, so if your existing gap is at the tight end near 1/16 inch you are adding resistance; on a door that was already dragging the stop, sort the hinge or strike first.
7) How many feet of Pemko S44 gasketing do I need per door, and what coil lengths does it come in?
S44 comes in 17, 18, 20, 21, 25, 30, 204, and 510 foot coils. A standard 3-0 by 7-0 single opening takes roughly 17 feet to run the head and both jambs, which is why the 17 foot coil exists, so figure one small coil per single door and add for taller frames or pairs. If you are doing a floor of units or a corridor of fire doors, the 204 and 510 foot bulk coils cut the waste from a lot of individual short pieces.
8) What colors does the Pemko S44 gasketing come in, and which one hides best on a painted frame?
Four silicone colors: black, clear, gray, and white. Clear is the one that disappears on a stained wood or unusual painted frame because it takes on whatever is behind it. White matches painted white frames in offices and multi-family corridors, gray blends into primed or gray hollow metal, and black is the standard on dark bronze and dark painted frames. All four are the same silicone seal, so this is purely an appearance decision, and every color is offered in each of the coil lengths.
9) Will Pemko S44 gasketing hold up on an exterior door or in a hot mechanical room?
The SiliconSeal silicone stays effective from -58 degrees F to 450 degrees F, which covers unconditioned stairwells, exterior openings in cold climates, and boiler and mechanical rooms. It is also unaffected by sunlight, ozone, ultraviolet, fungus, and mildew, so a south facing exterior frame will not chalk or crack the seal the way some elastomers do, and a damp basement or pool corridor will not grow anything on it.
10) Will Pemko S44 gasketing stop the draft and light leak around a commercial door?
Air infiltration through the S44 measures .09 CFM per foot of crack when tested to ASTM E-283-04, which is a tight number for a perimeter seal and is why it is used on stairwell and corridor doors where pressure differential drives drafts and noise. Sealing the head and both jambs also closes the light gap on those three sides. The bottom of the door is a separate part, so a door with S44 on the frame and nothing at the sill will still show a line of light and pass air underneath.
11) Is the Pemko S44 gasketing acceptable for a school or healthcare project with indoor air quality requirements?
S44 is Greenguard Gold certified and the silicone is non-toxic and self-extinguishing, which is the combination specifiers look for on classroom, patient room, and childcare openings where low chemical emissions are written into the spec. It is a commercial grade product, so it also carries the fire and smoke testing those same facilities need on their rated openings.
12) Has Pemko S44 gasketing been tested for sound as well as smoke?
Sound testing on the S44 was done to ASTM E90, the standard lab method for airborne sound transmission through an assembly. In practice the gain comes from closing the perimeter crack, and the same seal measures .09 CFM per foot of crack for air, so the head and jamb leak path is genuinely shut. Bear in mind the sound number belongs to a whole tested assembly, not to a length of gasketing, and the door bottom is the leak path that usually decides how quiet an office or hotel room ends up.
How fast can I get the Pemko S44BL17 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 Pemko S44BL17 come with a warranty?
Absolutely. The Pemko S44BL17 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 Pemko S44BL17?
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 Pemko S44BL17 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.

Product Reviews

  • 5
    A Must-Have for Safety-Conscious Homeowners

    Posted by Lawson on Aug 29th 2023

    This product is a game-changer! I was pleasantly surprised by the easy installation – no hassle at all. The adhesive backing stuck like a charm. The fire/smoke protection is top-notch, giving me peace of mind. Only downside? It's a bit pricier than other options. Still, safety's worth it!

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