METACAULK Firestop Sheet,Black,Intumescent,4&L

Firestop Sheet; Fire Rating 3 hr; Fire Resistance Type Intumescent; Firestop Type Gasket Insert; Overall Width 0.11 in; Roll Length 4 in; Color Black; Features For Safe Retrofit Applications; Reduces Sound Transmission; Flame Spread Index 5; Outer Material Intumescent; Resistance Properties Fire Resistant; Smoke Developed Index 5