Pemko PK55 Fire-Rated Adhesive...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$137.50
$23.91
Pemko PK55 fire-rated adhesive perimeter gasketing, white silicone, D-profile cross-section, UL1784 smoke seal

Pemko PK55 Fire-Rated Adhesive Perimeter Gasketing with UL1784-01 Smoke Seal Compliance

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Model: PK55W17
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$137.50
$23.91
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Pemko PK55 Fire-Rated Adhesive Perimeter Gasketing with UL1784-01 Smoke Seal Compliance

Professional Fire and Smoke Seal Solution

The Pemko PK55 Adhesive Perimeter Gasketing delivers tested and classified fire and smoke protection for commercial door assemblies. This professional-grade silicone gasketing compresses to seal gaps from 3/16"; down to 1/16"; while maintaining flexibility from -40-Degree Fahrenheit to 250-Degree Fahrenheit. UL1784-01 smoke tested and NFPA 105 compliant with UL10C fire rating, it provides reliable sealing performance for demanding fire-rated applications.

Professional Features & Benefits

  • Compression Range: Seal begins compressing at 3/16"; and compresses to seal up to a 1/16"; gap for versatile installation requirements.
  • Temperature Performance: Stays flexible between -40-Degree Fahrenheit and 250-Degree Fahrenheit with very high resistance to flex fatigue for reliable long-term operation.
  • Fire and Smoke Compliance: Smoke tested in accordance with UL1784-01, meets NFPA 105 requirements, and UL10C fire rated with positive pressure testing for comprehensive protection.
  • Superior Durability: Excellent resistance to compression set, particularly at elevated temperatures and for extended periods of time.
  • Low Operating Force: Demonstrates extremely low closing force while designed for tighter frames to optimize door operation.
  • Weather Resistance: Outstanding ozone resistance rating ensures long-term performance in various environmental conditions.
  • Flexible Configuration: Available in black (BL), dark brown (D), or white (W) colors and 17, 18, 20, 21, 25, and 510 ft. coils to accommodate various project requirements.
  • Manufacturer Warranty: 5 Year warranty coverage for added confidence and protection.

Technical Specifications

  • ANSI/BHMA: Air Infiltration Tested, Intertek Testing (Warnock Hersey), 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: Excellent Compression, Self-Extinguishing, Non-Toxic
  • Product Category: Door Trim and Accessories
  • Product Dimension: W: 1/2", H: 3/16";
  • Product Group: Door Trim and Accessories
  • Product Model: PK55
  • Product Subgroup: Astragals, Gaskets and Weatherstripping
  • Product Substrate: Silicone
  • Product Type: Gaskets
  • Subcategory: Gaskets & Weatherstripping
  • Warranty: 5 Year

Professional Applications

  • Fire-Rated Door Assemblies
  • Smoke Barrier Door Systems
  • Commercial Building Fire Protection
  • Healthcare Facility Fire Doors
  • Educational Institution Safety Systems
  • High-Rise Building Compartmentalization
  • Industrial Fire Separation Applications

Why Choose Pemko Quality?

Pemko PK55 gasketing delivers professional-grade fire and smoke protection with tested compliance to UL1784-01, NFPA 105, and UL10C standards. The superior temperature range performance from -40-Degree Fahrenheit to 250-Degree Fahrenheit and excellent compression set resistance ensure reliable long-term sealing in demanding commercial fire protection applications. Backed by a 5 Year warranty for dependable performance where life safety is critical.

Product Specs

Features:
Excellent Compression, Self-Extinguishing, Non-Toxic
Application:
Door Frames to Seal Top and Sides of Door
Warranty:
5 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), BHMA Certified, Smoke Tested- UL1784, Fire Rated UL10C- Positive Pressure, Underwriters Laboratory 4L10, Greenguard Gold Certified
Commercial/Residential:
Commercial
Product Model:
PK55
Product Dimension:
W: 1/2", H: 3/16"
Product Category:
Door Trim and Accessories
Product Substrate:
Silicone
Department:
Door Hardware

Pemko PK55W17 – Frequently Asked Questions

1) Is Pemko PK55 gasketing approved for a fire-rated and smoke barrier door assembly?
Fire rated to UL10C under positive pressure and smoke tested to UL1784, which is what a smoke barrier opening calls for. The gasketing is also BHMA certified, air infiltration tested, and carries Intertek (Warnock Hersey) testing, so it stands up to an inspector asking for the listing on a rated opening in a hospital, school, or high rise.
2) Where does PK55 gasketing get installed, on the door or on the frame?
On the frame. The PK55 goes on the frame stop around the head and both jambs, sealing the top and sides of the door where it closes against the stop. It is adhesive backed, so it is a peel-and-stick application onto a clean stop face, not a screw-applied or kerf-in seal. It does nothing for the bottom of the door, so pair it with a door bottom or automatic door bottom if you need the full perimeter sealed.
3) How much PK55 gasketing do I need per door, and what coil lengths does Pemko sell it in?
Coils run 17, 18, 20, 21, 25, and 30 feet, plus a 510 foot bulk coil. The short coils are cut to typical single-opening perimeters, head plus two jambs, so one coil does one door with little waste. The 510 foot coil is the one to order when you are gasketing a whole floor or standardizing a building and want a single roll to cut from. All seven lengths are stocked in black, dark brown, and white.
4) Will PK55 silicone gasketing hold up in an unconditioned stairwell or an exterior opening?
The silicone stays flexible from -40F to 250F and has an ozone resistance rating suited to outdoor exposure, so a stair tower, a garage vestibule, or an exterior rated opening is within range. It also resists compression set at elevated temperature over long periods, which is the failure mode that leaves an older gasket permanently flattened and no longer touching the door.
5) Will adding perimeter gasketing make my fire door hard to close or keep it from latching?
Closing force is the usual worry with perimeter seals, and the PK55 is built around a low-force silicone bulb intended for tighter frames. It exerts extremely low closing force while still compressing to seal, and it has very high resistance to flex fatigue, so a door cycled hard all day keeps closing normally. That matters on a rated opening, where the door has to close and latch under its own closer every time.
6) Does PK55 gasketing meet NFPA 105 for smoke and does it count toward a green building submittal?
NFPA 105 compliance is met, backed by UL1784 smoke testing, so the PK55 works as the smoke seal on a smoke barrier opening. For sustainability submittals it is Greenguard Gold certified, and the silicone is self-extinguishing and non-toxic, which is what a healthcare or school procurement package tends to ask for alongside the fire listing.
7) Which color PK55 should I order to match my hollow metal frames?
Three colors: black, dark brown, and white silicone, each available in every coil length. Black disappears against dark bronze and painted dark frames, dark brown suits wood and bronze anodized, and white matches painted white or light aluminum frames. Since the gasket sits on the face of the stop where it is visible when the door is open, colour choice is what keeps it from reading as an add-on in a finished lobby or patient corridor.
8) Is PK55 gasketing suitable for a residential door or is it commercial only?
Commercial. The PK55 is a commercial door hardware product aimed at rated and smoke barrier openings in institutional and commercial buildings. It will physically stick to a residential frame stop, but the silicone compound, the fire listing, and the price of that listing are all for openings where the seal is part of a life safety assembly, not for weatherstripping a house door.
How fast can I get the Pemko PK55W17 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 PK55W17 come with a warranty?
Absolutely. The Pemko PK55W17 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 PK55W17?
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 PK55W17 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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