Pemko S88BL25 300" 25' Adhesive Perimeter Gasketing Black Finish

The S88BL25 adhesive perimeter gasket seals door frames and openings where air infiltration control is critical. This silicone gasket installs around door perimeters to compress and seal gaps up to 1/16 inch. Building managers use this product to meet smoke seal requirements and reduce energy loss through door assemblies.

Pemko manufactures this 25-foot roll of black silicone gasketing for fast installation on commercial door frames. The adhesive backing eliminates the need for mechanical fasteners on most applications. The gasket compresses under door pressure to create an effective barrier against air leakage and smoke infiltration.

This gasket helps building operators maintain proper air pressure differentials across fire doors. For complete fire door assembly compliance, reference UL 10C fire-rated door testing requirements and annual inspection protocols. Fire door assemblies require compatible hardware throughout the opening, and ANSI/BHMA A156.4 door closers must maintain proper closing force to engage the gasket seal.

Material	Silicone
Installation	Adhesive backing
Length	300 inches (25 feet)
Gap Seal	Up to 1/16 inch
Finish	Black
Warranty	5 years limited

This product meets UL 10C positive pressure fire testing, UL 1784 air leakage testing, ANSI/BHMA A156.22 door gasketing standards, and ASTM E283 air infiltration testing. GREENGUARD Gold certification confirms low chemical emissions for indoor air quality.