• Firestop Performance: Tested to recognized firestop standards; supports up to four-hour rated systems when installed per tested assemblies.
• Water Leakage Resistance: UL systems tested for Class 1 W-Rating performance; evaluated for water leakage resistance in firestop assemblies.
• Acoustic Sealing: STC rating of 65; helps reduce sound transmission through penetrations and joints.
• Water-Based & Low VOC: Water-based formulation; VOC less than 10 g/L; easy cleanup.
• Flexible Elastomeric Cure: Cures to a flexible seal; accommodates dynamic building movement.
• Easy Application: One-component formula; no mixing or dilution required; non-sag caulking grade.
• Long Shelf Life: Up to 3-year shelf life when stored properly.

• Product Type: One-component water-based elastomeric firestop sealant
• VOC Content: < 10 g/L
• Density: 12.5 lbs/gal
• Skin Over Time: Approximately 30 minutes at 77°F
• Cure Time: 3 to 4 weeks at 77°F
• Application Temperature: 40°F to 120°F
• Flame Spread (ASTM E84): 10
• Smoke Developed Index: 0
• Sound Transmission Class (STC): 65
• Tested to: ASTM E814 (UL 1479), ASTM E1966 (UL 2079), ASTM E119 (UL 263), ASTM E84, ASTM E90
• W-Rating: Class 1 W-Rated systems (per tested assemblies)

Intended for interior use in fire-rated construction assemblies, including:

• Gypsum wallboard partitions
• Concrete and concrete block walls
• Floor and floor/ceiling assemblies
• Corrugated steel deck assemblies
• EMT conduit penetrations
• Telephone and power cable penetrations
• Construction joints subject to movement

Suitable for both vertical and horizontal interior applications.

• Clean all surfaces of debris, dust, oil, and loose material before installation.
• Install backing materials or sleeves as required by the tested firestop system.
• Apply using a standard caulking gun, bulk loading gun, pumping equipment, or trowel depending on packaging format.
• Tool surface flush to substrate as required.
• Follow the specific tested firestop system design for proper depth and configuration.
• No mixing or dilution is required.