Pemko's Hot Smoke Seal intumescent edge sealing system.

-  Adhesive backed (surface applied) intumescent material.
-  Chemically inert, highly stable, expandable graphite strip.
-  Tested and proven in positive pressure conditions to withstand both hot smoke and hot gasses, resulting in longer integrity of the door assembly.
-  More economical to use than specially modified doors in "tested assembly only" classifications.
-  Hot Smoke Seal can be painted to blend in with the finish of a door/frame.
-  Does not require periodic aftermarket field inspections.
-  Will not degrade from carbon dioxide and ozone like many competitive intumescents from other manufacturers.
-  Unaffected by moisture and will not break down like fiber-based or cellulose-based products.
-  Category B - Doors - additional edge sealing system required - see Category G. Requires Category G system with gasket for fire and possibly smoke.
-  Category G - Edge-Sealing Systems - systems that are surface applied to frames or doors and required for Category B doors. 
-  Category G - Edge-Sealing Systems - Hot Smoke Seal type for use with Category B wood and plastic covered composite doors rated up to and including 1-1/2 hours and Category B wood core doors rated 20 minutes without hose stream. Also suitable as as Category J gasket for use with Listed steel frames and/or classified steel covered composite, hollow metal doors rated up to 3 hours.
-  Perimeter seal with Pemko lite kit in steel covered fire doors rated up to and including 1-1/2 hours