• Highly Intumescent Protection: Expands when exposed to heat to block flames, smoke, and hot gases.
• Up to 4-Hour Fire Ratings: Tested in accordance with ASTM E814 (UL 1479), ASTM E1966 (UL 2079), and CAN/ULC-S115 standards.
• Flexible, Elastomeric Cure: Remains flexible after curing, allowing for movement in dynamic joints.
• Water-Based & Low VOC: VOC content < 10 g/L; easy cleanup and compliant with environmental requirements.
• Excellent Freeze-Thaw Stability: Maintains performance through temperature cycling.
• Acoustical Performance: STC rating of 62 when tested per ASTM E90.
• Mold Resistant: Tested to ASTM G21 with zero fungal growth rating.
• FM Approved & Certified: Listed under FM Approvals Class 3971 and 4990.
• 3-Year Shelf Life: When stored between 35°F and 120°F.

Designed for interior fire-rated construction assemblies, including:

• Fire-rated gypsum wallboard partitions
• Concrete block walls
• Concrete walls and floor/ceiling assemblies
• Corrugated steel deck assemblies
• Through-penetrations (EMT, telephone and power cables, insulated pipes)
• Blank openings
• Acoustical sealing in vibration-prone areas

Not intended for:

• Continuous water immersion
• Areas subject to continuous wet conditions
• Surfaces exceeding 300°F uninsulated

Application Method: Apply using trowel from pail or pump application.

Surface Preparation: Surfaces should be clean, dry, and free of debris. When damming materials are required, use only approved materials for the listed assembly.

Installation Guidance: Install to specified depth per tested and listed assembly. Tool flush with substrate. Consult UL system listings for complete installation requirements.

Inspection & Repair: Inspection recommended per ASTM E2174 and ASTM E2393. Damaged areas must be repaired using the same product to maintain system integrity.

Storage: Store between 35°F and 120°F. Protect from freezing. If frozen, thaw completely before use.