Pemko S88BL Silicone Adhesive-Backed Fire-Smoke Gasketing, 1/2" Width, 1/4" Height, Black Color

The Pemko S88BL is a silicone adhesive-backed gasket engineered to provide reliable fire and smoke protection around door openings. Featuring a durable silicone bulb seal measuring 1/2" wide and 1/4" high, it compresses against the door or frame to block the passage of smoke, drafts, and sound. The peel-and-stick adhesive backing allows for fast, tool-free installation on wood, metal, or masonry surfaces. Finished in black to blend discreetly with most door hardware, this gasket is UL-listed for use on fire-rated assemblies. Ideal for commercial and institutional openings, the S88BL delivers long-lasting performance in high-traffic environments where safety and energy efficiency matter.

Features

• Silicone bulb seal resists heat, aging, and compression set for extended service life.
• Pressure-sensitive adhesive backing enables quick installation without fasteners or tools.
• UL-listed for use on fire-rated door assemblies to help control smoke and flame spread.
• Compact 1/2" width and 1/4" height profile fits a wide range of door and frame configurations.
• Black finish provides a clean, low-visibility appearance on most openings.
• Helps reduce air infiltration, noise, and light transmission around the door perimeter.

Functional Details

The S88BL uses a flexible silicone bulb that compresses when the door closes, forming a continuous seal against smoke and air passage. The self-adhesive strip bonds directly to the frame stop, allowing the gasket to perform as both a smoke seal and a weather barrier on fire-rated openings.