3M™ Fire Barrier Rated Foam (FIP 1-Step), is a smoke, sound, and firestopping foam for wall
and floor penetrations. Premium two-part, easy-to-handle formulation. Expands up to five
times during installation and bonds to most construction substrates including, but not limited
to, concrete, metal, wood, plastic and cable jacketing. Dries to a flexible solid. During a fire,
product maintains a tight firestop against smoke and flame.