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Category J gaskets for use with listed steel frames and/or classified steel covered composite, hollow metal doors rated up to and including 3 hours; wood and plastic covered composite doors rated up to and including 1-1/2 hours; and wood core doors rated for 20 minutes.
Rigid jamb weatherstrip is shown mounted on openings with 1/16" gaps; however, each weatherstrip can seal gaps up to the depth of its seal. Seal depth is provided on each illustration.
Stainless steel fasteners are standard. Other fasteners are available.
Model 303_ is available with self-adhesive, two-sided tape (TST) and tek screws (3 slotted holes per part) for easy installation. To obtain this option, add "TST" to the end of the part number when ordering (i.e. 303AS36TST).
This perimeter gasketing is supplied with a Silicone ("S") insert - item number S3 (available in black or white).
Pemko perimeter gasketing products are designed to seal the gap around the top and the 2 sides of a door assembly. The top of the door (head) is the first number used in ordering a perimeter set of gasketing. The sides (side jambs) are the second number used in ordering. The side jambs are provided as two pieces. Numerous channels are available with a wide variety of inserts. Perimeter gasketing, unless otherwise specified, is designed for openings with 1/16" gaps; however, each weatherstrip can seal gaps up to the depth of its seal.