SpecSeal® Firestop Blocks are penetration firestop products resembling foam bricks. These intumescent urethane foam blocks are installed in openings by compressing and stacking into the opening in a brick-like fashion. The intumescent block expands in high temperatures to impede fire, smoke, and gas passage.

Features

• Intumescent – expands in all directions for a tough, tight seal
• Reinstallable for easy retrofitting of various pipes, cables, and innerducts
• Lightweight for ease of installation
• Easier wire screen requirements for large openings and 2 hour ratings
• No special tools required
• Superior air leakage ratings
• No cure time -> fast application
• Block may be coated using primer if required
• Dust-free, fiber-free, halogen-free, and solvent-free

24 pcs/ctn