Firestop Joint Spray CFS-SP WB Firestop and Smoke Seals HILTI
A firestop smoke seal is a passive fire protection material used to block the passage of flames, smoke, and gases through openings and gaps in fire-rated walls, floors, and doors
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HILTIProduct Category
Firestop and Smoke Seals
HILTI Firestop and Smoke Seals Firestop Joint Spray CFS-SP WB
A firestop smoke seal is a passive fire protection material used to block the passage of flames, smoke, and gases through openings and gaps in fire-rated walls, floors, and doors
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Complete Technical Specifications for HILTI Firestop Joint Spray CFS-SP WB
| Property | Value | Unit |
|---|---|---|
| Product Name | Firestop Joint Spray CFS-SP WB | — |
| product description | A sprayable fire-rated mastic for construction joints where maximum movement is required. | — |
| Product Features | Sprayable or applied by brush, Maximum flexibility, meets 500 cycle requirements (Class II and III Approval) (ASTM E 1966 and UL 2079), Compatible with Graco Ultra Max II 595 or 695 sprayers for faster installation, Contains no halogens, solvents, or asbestos, Water-based formulation — easy cleanup, High elasticity — movement capability up to 50%, Excellent sprayability and low slump, California State Fire Marshal approval for joints | — |
| Installation Instructions | Refer to Hilti literature or third-party listings for complete installation details. | — |
| Density | 10.8 | lb/gal |
| Colour | Red, white, gray | — |
| Packaging | 5-gallon | — |
| Storage Temperature | 35°F to 95°F | °C |
| Shelf Life | 12 months | — |
| Application Temperature | 39°F to 104°F | — |
| Temperature Resistance | 40°F to 176°F | — |
| Consistency | Sprayable liquid | — |
| Chemical Basis | Acrylic water-based dispersion | — |
| Tack-Free Time | 3 hrs @ 73°F, 50% RH | % |
| Curing Time | 24 hrs @ 73°F, 50% RH for ¼" | depth |
| Volume Shrinkage | 51.1 | % |
| Water Tightness | Yes | — |
| pH Valu | 8–9 | — |
| Movement Capability | Up to 50 | % |
| Paintable | Yes | — |
| Seismic Resistant | Yes | — |
| Mold & Mildew (ASTM G21-90) | 0 — No growth | — |
| Air Leakage (UL 2079 L-Rating) | Ambient: <1 CFM/Lin Ft, 400°F: <1 CFM/Lin Ft | — |
| Surface Burning (ASTM E84) | Flame Spread: 5, Smoke Developed: 0 | — |
| Surface Burning (CAN/ULC-S102) | Flame Spread: 5, Smoke Developed:1 0 | — |
| STC Rating (ASTM E90-89) | 59 | — |
| Tested In Accordance With | UL 2079, ASTM E1966, ASTM E84, ASTM E2837, UL 1479, ASTM E814, ASTM E2037, ASTM E1999, ASTM E1354, CAN/ULC-S115 | — |
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