Economical, light-weight portland cement-based firestop product. This non-intumescent material utilizes heat sinking and insulating properties to provide an extremely high level of fire resistance. Mixes with water, forming a non-shrinking mortar that can be poured, pumped, or troweled. Because of its light weight, it dries faster and requires less forming.  Red in color for easy identification. Excellent for a wide range of complex firestopping applications.