Fire Barrier Sealant, Application Method Caulk , Color Gray, Container Size 20 oz, Container Type , Drying Time 3 hr, Expansion Temperature Not Applicable, Fire Rating 4 hr, Firestop Type Sealant/Caulk, Flame Spread Index 5, Flame Spread Rating Class A, For Material Type All Common Construction Surfaces, For Use On Blank opening, bottom of wall, busway, cable tray, floor to floor, floor to wall, head of wall, metal pipe, multiple penetrants, wall to wall, Formulation Silicone