Polyurethane foam sealant. Impedes the spread of fire, smoke, and toxic gases. Seals service penetrations between floors, seals electrical runs through stud walls, also stops drafts and saves energy. Minimal expanding foam. Type 5 residential buildings (i.e. not for industrial/commercial applications). Compliant to ASTM E84, ASTM E814, and UL 1715. User should check with local code compliance authorities prior to use. Orange in color for easy code identification. (1) 12 oz. can will cover 495 linear ft. at a 1/4″ bead.