Pemko HSS2000-18 Hot Smoke Seal, (18-Feet)

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. Sold in coil of 18ft