Pemko S104D Silicone Kerf-In W...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$302.00
Pemko Pemko S104D 100ft. Silicone Kerf-In Weatherstrip, Dark Brown Silicone S104D100

Pemko S104D Silicone Kerf-In Weatherstrip 100ft Dark Brown Fire Rated

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Model: S104D100
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$302.00
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Pemko S104D Silicone Kerf-In Weatherstrip 100ft Dark Brown Fire Rated

Professional Fire-Rated Weatherstripping Solution

The Pemko S104D Silicone Kerf-In Weatherstrip delivers professional-grade door sealing performance in a convenient 100ft length. This high-grade silicone weatherstrip accommodates door gaps from 1/16"; minimum to 1/4"; maximum space between door face and stop. Fire rated to UL10C Positive Pressure standards and GREENGUARD Gold Certified, this dark brown silicone weatherstrip maintains flexibility from -100-Degree Fahrenheit to over 400-Degree Fahrenheit while resisting sunlight, ozone, and UV degradation.

Professional Features & Benefits

  • Optimal Gap Coverage: Designed for door gaps from 1/16"; minimum to 1/4"; maximum space between door face and stop for versatile installation applications.
  • Extended Length Roll: 100ft continuous length reduces waste and installation time for large projects and multiple door applications.
  • Extreme Temperature Performance: Stays flexible well below -100-Degree Fahrenheit and resilient above 400-Degree Fahrenheit for reliable operation in demanding environmental conditions.
  • Fire Safety Compliance: UL10C Positive Pressure fire rating and Underwriters Laboratory 4L10 listing ensure code compliance for fire-rated door assemblies.
  • High-Grade Silicone Construction: Self-extinguishing and non-toxic silicone material provides superior durability and safety performance.
  • Environmental Resistance: Unaffected by sunlight, ozone, and ultraviolet rays while remaining impervious to fungus and mildew for long-term reliability.
  • GREENGUARD Gold Certification: Low chemical emissions certification supports healthy indoor air quality in commercial environments.
  • Manufacturer Warranty: 5 Year warranty coverage provides added confidence and protection for professional installations.

Technical Specifications

  • Commercial/Residential: Commercial
  • Department: Door Hardware
  • Product Category: Door Trim and Accessories
  • Product Dimension: L: 100', W : 3/16", H: 5/16";
  • Product Finish: Dark Brown
  • Product Group: Door Trim and Accessories
  • Product Model: S104D
  • Product Subgroup: Astragals, Gaskets and Weatherstripping
  • Product Substrate: Silicone
  • Product Type: Weatherstripping
  • Subcategory: Gaskets & Weatherstripping
  • UL Listing Type: Fire Rated UL10C Positive Pressure, Underwriters Laboratory 4L10
  • Warranty: 5 Year

Professional Applications

  • Commercial Office Buildings
  • Educational Facilities
  • Healthcare Institutions
  • Government and Municipal Buildings
  • Industrial and Warehouse Facilities
  • Fire-Rated Door Assemblies
  • Multi-Tenant Residential Properties

Fire Safety Compliance

This weatherstrip meets UL10C Positive Pressure fire rating requirements and Underwriters Laboratory 4L10 standards for use in fire-rated door assemblies. The self-extinguishing silicone material provides critical fire safety performance while maintaining effective sealing under positive pressure conditions required for code compliance.

Why Choose Pemko Quality?

Pemko weatherstripping products deliver professional-grade reliability with high-grade silicone construction rated for extreme temperature performance from -100-Degree Fahrenheit to over 400-Degree Fahrenheit. GREENGUARD Gold Certified with 5 Year warranty coverage and UL fire safety listings. Engineered for demanding commercial applications where dependable sealing performance and fire safety compliance are essential.

Product Specs

Warranty:
5 Year
Product Group:
Door Trim and Accessories
Product Subgroup:
Astragals, Gaskets and Weatherstripping
Product Type:
Weatherstripping
Subcategory:
Gaskets & Weatherstripping
Commercial/Residential:
Commercial
UL Listing Type:
Fire Rated UL10C Positive Pressure, Underwriters Laboratory 4L10
Product Model:
S104D
Product Finish:
Dark Brown
Product Dimension:
L: 100', W : 3/16", H: 5/16"
Product Category:
Door Trim and Accessories
Product Substrate:
Silicone
Department:
Door Hardware

Pemko S104D100 – Frequently Asked Questions

1) Will Pemko S104D silicone weatherstrip work on a fire-rated door?
Yes. The S104D silicone kerf-in weatherstrip is fire rated to UL10C Positive Pressure and carries an Underwriters Laboratory 4L10 listing, so it can be used on fire-rated door assemblies. The silicone is self-extinguishing. For an institutional or MRO buyer standardizing seals across a facility, that UL10C listing is the part of the spec that matters, since positive pressure testing is what current code references for fire door gasketing.
2) What size door gap does the Pemko S104D weatherstrip seal?
The S104D seals gaps from 1/16 inch minimum to 1/4 inch maximum between the door face and the stop. Measure that gap at the top and both hinge and lock stiles before ordering. If your doors have swelled or sagged and the gap runs wider than 1/4 inch at any point, this seal will not close it and you need a different profile or a door adjustment first.
3) Does the S104D need a kerf in the frame, or can I stick it on?
Kerf-in only. The S104D has a barbed spline that presses into a saw kerf cut in the frame stop, so the frame has to already have a kerf or you have to cut one. If your frames are not kerfed and you do not want to mill them, a press-on seal is the way to go: the Hager 726S smoke seal weatherstrip installs press-on. For frames where you want a surface-applied retainer instead, the Hager 864S is a clear anodized aluminum adjustable jamb weatherstrip with a neoprene insert that screws to the stop.
4) Is Pemko S104D weatherstrip a smoke seal, or just a weather seal?
The S104D is listed under UL10C Positive Pressure and Underwriters Laboratory 4L10, which is fire door gasketing. If your spec calls specifically for a smoke and draft control seal, look at products carrying that designation: the Hager 726S is a smoke seal weatherstrip, and the Hager 862S is a 48 inch weatherstrip with a neoprene insert built for smoke and draft control. Read the drawing carefully, because a fire listing and an S-label smoke and draft rating are not the same requirement.
5) What replaces Pemko S104D weatherstrip on a frame that is not kerfed?
The S104D is a kerf-in silicone strip and needs a kerf in the stop to hold it. For a frame without one, the Hager 862S is a 48 inch weatherstrip with a neoprene insert for smoke and draft control, and the Hager 864S is an 84 inch clear anodized aluminum adjustable jamb weatherstrip with a neoprene insert. Both are carrier-mounted assemblies that fasten to the frame rather than seating in a kerf, and the 862S 48 inch and 864S 84 inch lengths are cut to head and jamb respectively rather than pulled off a continuous roll.
6) Can Cal-Royal BW-302 brush weatherstrip be used in place of Pemko S104D?
They seal differently. The Cal-Royal BW-302 is a nylon brush weatherstrip in the Brush Weatherstrips Series with an extruded aluminum seal retainer, so the sealing element is brush filament held in a surface-applied aluminum carrier. The Pemko S104D is a high grade silicone strip that seats in a kerf and carries a Fire Rated UL10C Positive Pressure and Underwriters Laboratory 4L10 listing. On an opening where the fire rating is what the inspector is checking, specify the S104D.
7) Will silicone weatherstrip hold up on an exterior door in full sun or extreme cold?
That is where silicone earns its place over foam or vinyl. The S104D stays flexible well below -100 F and stays resilient above 400 F, and it is unaffected by sunlight, ozone, and UV. It is also impervious to fungus and mildew. On a south-facing exterior entrance or an unheated mechanical or warehouse opening, that means it will not go brittle and crack the way a cheaper seal does after a couple of seasons.
8) Which weatherstrip should I use for a door that drags dirt or has an uneven gap, silicone or brush?
A silicone bulb seal like the S104D compresses against the stop and is the right call for sealing air, weather, and fire door gasketing where the gap runs 1/16 to 1/4 inch. Brush seal is the other approach and it handles sweeping applications and irregular contact better without binding the door. If that is your situation, the Cal-Royal BW-302 is a nylon brush weatherstrip with an extruded aluminum seal retainer. Brush will not give you the same air seal as a compressed silicone bulb.
9) Is the Pemko S104D approved for schools and healthcare buildings with indoor air quality requirements?
It is GREENGUARD Gold Certified for low chemical emissions, which is the certification specified on school, healthcare, and LEED-oriented projects. The silicone is also non-toxic. Combined with the UL10C fire listing, that makes it usable on rated corridor and stair doors in institutional buildings where both the fire spec and the indoor air quality spec have to be satisfied by the same product.
10) For a jamb that needs the seal adjusted after the door is hung, what weatherstrip should be used instead of Pemko S104D?
The Hager 864S is an 84 inch clear anodized aluminum adjustable jamb weatherstrip with a neoprene insert, so the carrier position can be set against the door after hanging. The Pemko S104D is a kerf-in silicone strip whose position is fixed by where the kerf was cut; its compression range is set by the gap between door face and stop, from 1/16 inch minimum to 1/4 inch maximum. On a warped or out-of-square opening a contractor often wants the adjustable carrier; on a true opening the kerf-in strip removes the fastener work entirely.
11) Which weatherstrip holds up better than Pemko S104D in a boiler room or an exterior door in direct sun?
Stay with the S104D. Its high grade silicone stays flexible from below -100 degrees Fahrenheit to over 400 degrees Fahrenheit and is unaffected by sunlight, ozone, and ultraviolet rays as well as fungus and mildew. The neoprene insert peers, the Hager 862S at 48 inches and the Hager 864S at 84 inches, and the nylon brush Cal-Royal BW-302 use different sealing materials. For heat and UV exposure the silicone is the material to specify, and the 100 foot roll covers a run of doors from one purchase.
12) Is the Hager 862S the same thing as Pemko S104D for a smoke and draft rated opening?
They are not interchangeable parts. The Hager 862S is a 48 inch weatherstrip with a neoprene insert for smoke and draft control, sized to a single head or jamb run. The Pemko S104D is a silicone kerf-in strip on a 100 foot roll rated Fire Rated UL10C Positive Pressure with an Underwriters Laboratory 4L10 listing, in dark brown. A buyer standardizing a fire-rated door package across a facility cuts head and both jambs from the S104D roll; the 862S is ordered per piece at its 48 inch length.
13) What color is the Pemko S104D and will it match my existing frames?
Dark brown is the only finish this one comes in. It reads as a dark seal against bronze, dark anodized, and dark painted hollow metal frames. If your frames are aluminum mill finish or painted a light color, the dark brown will show as a visible line in the kerf, so for a property manager matching a run of openings, pick the seal color off the frame color and stay consistent across the building.
14) Do I need anything else to install Pemko S104D kerf weatherstrip?
No fasteners and no retainer. The S104D is a continuous 100 foot roll of silicone that presses into the frame kerf, so the only things you need on site are a way to cut the kerf if the frames are not already kerfed, and a knife to trim the runs to length. Miter or butt the head to the jambs at the corners so there is no gap at the joint. That is the whole install, which is why it goes quickly across a run of openings.
How fast can I get the Pemko S104D100 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 S104D100 come with a warranty?
Absolutely. The Pemko S104D100 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 S104D100?
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 S104D100 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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