Fire Block Foam is a ready-to-use foam fireblock designed to help prevent the spread of flames and smoke in residential Type V and non-commercial rated construction*.  Quickly seals openings, expanding up to 200% in volume. Heat resistant up to 240° F.  Bonds to most building materials,  excellent as a draftstop and a thermal insulator.  Tack-free in approximately 5 minutes. Tested to ATM E 184 (modified) as a Type V residential fireblock. Color: Orange.