A 22 lb./ft³ (352 kg/m³) density (average) SFRM intended for the fire protection of structural columns, beams, joists, decks, walls, roofs, girders, floors and pre-cast concrete units. It is tested and certified for fire resistance ratings up to 4 hours. It was specifically formulated for either unconditioned or conditioned areas such as mechanical rooms, elevator shafts and parking garages. Southwest Type 7GP is a trademark of the Southwest Fireproofing Products Company.