Pemko PK55BL17 Black Bulb Seal design permits use as a concealed seal for many applications. Slotted holes for adjustment. Flat flange provides the best contact between the brush and the threshold or floor surface.
Excellent Resistance To Compression Set, Particularly At Elevated Temperatures And For Extended Periods Of Time
Stays flexible between -40 degrees (F) and 250 degrees (F) with very high resistance to flex fatigue
Outstanding ozone resistance rating
Smoke tested in accordance with UL1784-01; meets the requirements of NFPA 105 "Standard for the Installation of Smoke Door Assemblies and Other Opening Protectives"
Designed for tighter frames
Demonstrates extremely low closing force
Seal begins compressing at 3/16"; compresses to seal up to a 1/16" gap
