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Pemko PK33D Adhesive-Backed Fire/Smoke PemkoPrene Seal - Dark Brown
The Pemko PK33D is a high-performance Adhesive-Backed Perimeter Seal engineered for critical fire and smoke containment. Manufactured from PemkoPrene, a specialized high-temperature synthetic rubber, this gasket is designed for tighter door frames where space is limited. It provides a robust seal against smoke, fire, sound, and weather, and its Dark Brown finish allows it to blend seamlessly into bronze-anodized frames or stained wood doors.
High-Performance & Durability Features
- Low Closing Force: Specifically crafted to compress at 3/16" and seal gaps down to 1/16", ensuring an airtight fit without making the door difficult to close.
- Environmental Resilience: Unlike standard vinyl, the PemkoPrene material is impervious to sunlight, ozone, and UV rays, ensuring it won't crack or degrade over time.
- Biological Protection: Engineered to be fungus and mildew resistant, making it an ideal choice for humid climates or healthcare environments.
- Safety & Non-Toxic Composition: This gasket is self-extinguishing and non-toxic, providing peace of mind in high-occupancy buildings.
- Fire & Smoke Certified: Rigorously tested under UL 10C (Fire) and UL 1784 (Smoke), making it code-compliant for use on steel frames rated up to 3 hours and wood doors rated for 20 minutes.
Technical Specifications
- Manufacturer: Pemko (ASSA ABLOY)
- Model: PK33D (Dark Brown)
- Material: PemkoPrene (High-performance synthetic rubber)
- Dimensions: Starts compressing at 3/16"
- Available Lengths: 17', 20', 25', and 510' coils.
- Ratings: BHMA Certified, GREENGUARD Gold Certified, and Fire Rated for Category J and G assemblies.
Pro-Tip for Facility Maintenance
The Pemko PK33D is highly recommended for retrofit applications where the existing door frame is too tight for traditional "bulb" gaskets. For a professional, long-lasting bond, always clean the frame header and jambs with an alcohol-based cleaner to remove grease and dust before applying the pressure-sensitive adhesive. If your opening requires extreme temperature performance (up to 450°F), consider the Pemko S773 silicone series; however, for most standard commercial fire doors, the PK33 provides a superior balance of durability and low-closing force.
| Gasketing Set Size | 17 ft Roll or 20 ft Roll |
| Brand | Pemko |
| Insert Material | Silicone |
| Gasketing Finish | Dark Brown |
| Fire Rated | Fire Rated |
| Smoke Rated | Smoke Rated |
| Mounting Type | Adhesive Applied |
| Weatherstripping Type | Perimeter Gasketing |
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