3M™ Fire Barrier Composite Sheets, Mortar and Pillows
Composite Sheets provide a re-enterable firestop system. Mortar features excellent adhesion bonds to concrete, metals, wood, plastic and cable jacketing. Pillows expand and lock into place to surround the penetrant(s) and help stop smoke, fire, and toxic gases from spreading. Foams firestop and seal large and complex penetrations.