Keywords: Caj8073 tray mortar fill.jpg Fire test preparation leading to UL firestop listing C-AJ-8073 Firestop mortar is first applied in the hardest to reach area between the cables inside the cable tray Own 2007-06-25 Achim Hering Firestops Cable trays Firestop mortar Electric cables Cement Fire testing CAJ 8073 3M Fire Barrier Mortar CP25 |