Product Technical Guides : US-EN Firestop Systems Guide For Specifiers | Page 45

Product Information
FIRESTOP BLOCK CFS-BL
Product description
• Ready-to-use, flexible intumescent firestop block designed for medium to large
sized openings
Product features
No expiration date alleviates shelf life concerns
Up to 12" annular space without requiring structural reinforcement
“Grid Tech” technology for increased annular space
Suitable for re-penetration or new penetrations
Easy, one person installation and re-penetration
No mess installation — no special tools required
Ideal for use in floors — no forming required
One sided systems available
Halogen, asbestos and solvent free
Operational immediately after installation
Smoke resistant, non-curing, re-usable material
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Areas of application
NEW
Grid-Tech!
• Sealing single or multiple penetrations in small to large openings
• Temporary or permanent sealing of cables and cable tray penetrations
• Temporary or permanent sealing of insulated and non‑insulated metallic pipes
and combustible pipe penetrations
For use with
Walls (UL tested up to max. opening 72" x 36")
Floors (UL tested up to max. opening 72" x 36")
Concrete, porous concrete, masonry and gypsum wall assemblies
Wall assemblies rated up to 4 hours
Floor assemblies rated up to 3 hours
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Examples
• Completely dust and fiber free rooms and places where electrical installations
are frequently used (ie: computer centers, hospitals, laboratories, etc.)
• New buildings in the construction phase and during renovation
• Large openings containing multiple penetrations as found in production bays,
warehouses, hospitals etc.
• Areas of frequent re-penetration and planning for future capacity
Installation instructions
Technical Data
Approx. 0.27 g/cm 3
Red
Application temperature 40° F to 104° F (5° C to 40° C)
Temperature resistance 5° F to 140° F (-15° C to 60° C)
Intumescent activation Approx. 392° F (200° C)
Expansion ratio (unrestricted) Up to 1:3
Surface burning characteristics
(ASTM E 84-10b) Flame Spread Index: 10
Smoke Development Index: 15
Sound transmission classification
(ASTM E 90) STC Rating: 52
(Relates to specific construction)
Approvals California State Fire Marshal -No. 4485-1200:0143
Tested in accordance with UL 1479, ASTM E 814, ASTM E 84
FILL, VOID OR CAVITY MATERIALFOR USE IN
THROUGH-PENETRATION FIRESTOP SYSTEMS
SEE UL FIRE RESISTANCE DIRECTORY
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Density Color
• See Hilti Literature or third-party listings for complete application and
installation details
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