Description
Pemko HSS2000xS88 Fire & Hot Smoke Seal
The Pemko HSS2000xS88 Fire & Hot Smoke Seal is a commercial-grade combination intumescent and silicone gasket designed to provide superior protection against fire, hot smoke, and hot gases in rated door assemblies.
Engineered with an adhesive-backed expandable graphite intumescent strip and high-temperature silicone bulb, this seal expands when exposed to heat, helping maintain the integrity of the door assembly during a fire event. It effectively seals against smoke, fire, air, sound, and weather, making it ideal for commercial and institutional applications.
Key Features
- Adhesive-backed combination intumescent and silicone gasket
- Withstands hot smoke and hot gases
- Seals against fire, smoke, air, sound, and weather
- High-temperature silicone bulb
- Self-extinguishing and non-toxic
- Commercial-grade, long-lasting durability
- Resistant to sunlight, ozone, and UV exposure
- Impervious to fungus and mildew
- Chemically inert, highly stable expandable graphite strip
- Unaffected by moisture
- Can be painted to match frame finish
- Will not degrade from carbon dioxide and ozone
Performance & Compliance
- Fire Rated – Edge Seals – UL10C Positive Pressure
- Intertek Testing (Warnock Hersey)
- Underwriters Laboratory 1S47 & 4L10
- Sound Tested – ASTM E90
- BHMA Certified
- GREENGUARD Gold Certified
- Meets Category G and H seal requirements
Tested and proven under positive pressure conditions, the HSS2000xS88 provides longer integrity of the door assembly compared to standard seals and is a cost-effective alternative to specially modified “tested assembly only” doors.
Specifications
- Gasket Type: Adhesive-backed
- Insert/Seal Type: Silicone + Intumescent
- Finish: Dark Brown (D – Dark Brown Silicone/Graphite)
Available Sizes
Furnished in cut lengths equivalent to standard door openings and can be field cut to accommodate openings up to 48″ x 84″.
Common models:
- HSS2000xS88D3684 – 36″ x 84″ Opening
- HSS2000xS88D4884 – 48″ x 84″ Opening
The Pemko HSS2000xS88 is an ideal solution for maintaining fire-rated door compliance while ensuring superior smoke containment and long-term durability in commercial environments.








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