Pemko S773 Fire and Smoke Door...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$157.05
$30.65
Pemko S773 fire and smoke door gasketing installed in door frame corner, showing adhesive-backed silicone seal in white finish

Pemko S773 Fire and Smoke Door Gasketing with Adhesive Backing - 3/8" x 1/2" High Temperature Silicone

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Model: S773BL17
Selected Finish is

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

$157.05
$30.65
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Pemko S773 Fire & Smoke Door Gasketing - Adhesive-Backed High Temperature Silicone

The Pemko S773 is an adhesive-backed fire and smoke perimeter gasket engineered for commercial door frame applications. Its triple-fin, high-temperature silicone profile (3/8" H × 1/2" W) seals against smoke, fire, air, sound, and weather in a single strip - no additional fasteners required. UL10C fire rated with positive pressure testing up to 3 hours on steel frames; UL1784 smoke tested; Greenguard Gold certified for indoor air quality.

Features & Benefits

  • Triple-Fin Silicone Profile: Three sealing fins compress evenly against the door stop, blocking light, sound, smoke, and air infiltration without impeding door latching.
  • Adhesive-Backed Installation: Peel-and-stick backing bonds directly to the door frame - no screws, clips, or additional hardware needed.
  • High-Temperature Silicone: Self-extinguishing, non-toxic material performs reliably under extreme heat; unaffected by sunlight, ozone, UV, fungus, and mildew.
  • Broad Fire Door Compatibility: Rated up to 3 hours on steel frames, up to 1½ hours on wood and plastic-covered composite doors, and up to 20 minutes on wood-core fire doors.
  • Multi-Hazard Sealing: A single gasket addresses fire, smoke, air infiltration, sound transmission, and weather - simplifying specification and installation.
  • 5-Year Manufacturer Warranty: Backed by Pemko's standard warranty for commercial-grade confidence.

Technical Specifications

  • Profile Dimensions: 3/8" H × 1/2" W
  • Material: High-temperature silicone (self-extinguishing, non-toxic)
  • Fire Rating: UL10C - Positive Pressure, up to 3 hours (steel frames)
  • Smoke Rating: UL1784 Smoke Tested
  • Sound Rating: ASTM E90 Sound Tested
  • Air Infiltration: Air Infiltration Tested
  • Certifications: BHMA Certified, Intertek/Warnock Hersey, Underwriters Laboratory 4L10, Greenguard Gold Certified
  • Application: Commercial door frames (perimeter/head/jamb)
  • Available Colors: Black, Dark Brown, Gray, White Silicone
  • Available Lengths: 17", 18", 20", 21", 25", 30", 250", 510"
  • Warranty: 5 Year

Typical Applications

  • Commercial fire door perimeter sealing
  • Healthcare and education facility fire code compliance
  • Multi-family and hospitality fire door upgrades
  • Government and municipal building fire barriers
  • Industrial facility smoke and fire compartmentalization

Product Specs

Features:
Triple Fin Gasketing Design Effectively Blocks Light and Sound From Infiltrating a Room
Application:
Doors
Warranty:
5 Year
Product Group:
Door Trim and Accessories
Product Subgroup:
Astragals, Gaskets and Weatherstripping
Product Type:
Gaskets
Subcategory:
Gaskets & Weatherstripping
ANSI/BHMA:
UL10C Fire Rated (Positive Pressure); UL1784 Smoke Tested; ASTM E90 Sound Tested; Air Infiltration Tested; BHMA Certified; Intertek/Warnock Hersey; UL 4L10; Greenguard Gold Certified
Commercial/Residential:
Commercial
Product Model:
S773
Product Dimension:
H: 3/8", W: 1/2"
Product Category:
Door Trim and Accessories
Product Substrate:
Silicone
Department:
Door Hardware

Pemko S773BL17 – Frequently Asked Questions

1) What is the Pemko S773 adhesive-backed fire/smoke gasketing used for?
The S773 provides fire and smoke sealing for doors and frames. It creates an effective barrier when doors close, preventing smoke migration and maintaining fire ratings. Commonly used in commercial buildings, hospitals, and educational facilities.
2) What door types and frame materials is this gasketing compatible with?
Works with steel, wood, and aluminum doors and frames. Compatible with hollow metal doors, solid core wood doors, and composite fire doors. Verify surface is clean and smooth for proper adhesion.
3) How is the adhesive-backed design installed?
Peel backing and press firmly onto frame or door edge. Clean surface with degreaser first. Apply at room temperature for best adhesion. Position carefully as repositioning may reduce adhesive strength.
4) What finishes and colors are available for the S773?
Typically available in black or gray intumescent material. Color may vary by manufacturer production run. Contact supplier to verify current finish options for your specific application.
5) What fire rating does this gasketing provide?
Designed for use in fire-rated door assemblies. Specific rating depends on complete door system testing. Consult fire door manufacturer specifications and local code requirements for rating verification.
6) Does this meet building code requirements for fire doors?
Manufactured to support fire door assembly compliance when properly installed. Must be part of tested fire door system. Check with authority having jurisdiction for specific code requirements in your area.
7) Are there related gasket profiles or accessories available?
Pemko offers various gasket profiles and sealing solutions. Different thicknesses and configurations available for specific gap requirements. Corner pieces and splicing materials sold separately.
8) What gap size does the S773 accommodate?
Gap accommodation varies by gasket thickness and compression. Measure actual gap between door and frame when closed. Select thickness to ensure proper compression without binding door operation.
9) How do you maintain and service this type of gasketing?
Inspect regularly for gaps, damage, or detachment. Clean gently with mild detergent. Replace sections showing wear or poor adhesion. Avoid painting over gasket as this may affect fire performance.
10) What are similar models or alternatives to the S773?
Other Pemko intumescent gaskets include different profile shapes and mounting methods. Consider screw-in or kerf-mounted options if adhesive application is not suitable. Verify fire testing compatibility before substituting.
11) How does temperature and humidity affect installation?
Install at moderate temperatures for optimal adhesion. Avoid installation in freezing conditions or high humidity. Allow adhesive to cure before subjecting to door operation cycles.
How fast can I get the Pemko S773BL17 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 S773BL17 come with a warranty?
Absolutely. The Pemko S773BL17 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 S773BL17?
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 S773BL17 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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