HILTI CFS-BL Firestop blocks User Guide
Learn all about the HILTI CFS-BL Firestop blocks, including their dimensions, chemical basis, color, and applications. These blocks are perfect for temporary or permanent passive fire sealing around cables and cable trays in wall and floor openings, and can be combined with CFS-F FX flexible firestop foam for added protection. Follow the installation instructions to ensure optimal use.