Pemko S77 Single-Fin Silicone Gasket

The S77 single-fin gasketing is air infiltration tested in accordance with ASTM E-283-04. Air infiltration is only .09 CFM / ft of crack. Smoke tested in accordance with UBC 7-2 and UL 1784-01; meets the requirements of NFPA 105 "Standard for the Installation of Smoke Door Assemblies and Other Opening Protectives". The adhesive perimeter seal is extruded from high-temperature silicone, effective between -58 and 450 degrees (F). Easy installation (requires no mechanical fasteners) and can be cut to size in the field. Gasketing material for fire doors intended for aplication to listed steel frames and/or classified steel covered composite type, and hollow metal type fire doors rated up to 3 hours; wood and plastic covered composite type fire doors rated up to 1-1/2 hours; and wood core type fire doors rated up to 20 minutes.