The Hilti FS-One high performance intumescent firestop sealant protects the typical firestop penetration. It's easy to work with and cleans up easy. It's also paintable and water based. Meets LEED requirements.
Features & Applications
- Protects most typical firestop penetration applications
- Easy to work with and fast cleanup
- Paintable
- Water based
- Meets LEED™ requirements for indoor environmental quality credit 4.1 Low Emitting Materials, Sealants and Adhesives and 4.2 Paints and Coatings
Technical Data*
FS-ONE
| Chemical basis | Water-based intumescent acrylic dispersion | |
| Color | Red | |
| Application temperature | 40° F to 104° F (5° C to 40° C) |
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| ` | ||
| Skin forming time | Approx. 20-30 min. | |
| Curing time | Approx. 2 mm / 3 days | |
| Movement capability | Approx. 5% | |
| Expansion rate (unrestricted) | Up to 3-5 times original volume | |
| Temperature resistance (cured) | –40° F to 212° F (–40° C to 100° C) |
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| Surface burning
characteristics (ASTM E 84-96) |
Flame Spread: 0 Smoke Development: 5 |
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| Sound transmission classification (ASTM E 90-99) |
56 (Relates to specific construction) | |
| Approvals • California State Fire Marshal - No. 4485-1200:108 • City of New York - MEA 326-96-M Vol. IV |
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| Tested in accordance with • UL 1479 • ASTM E 814 • ASTM E 814 • CAN/ULC-S115 |
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| * At 73° F (23° C) and 50% relative humidity | ||
| Description | Volume | Qty | Color | Item No. |
| FS-ONE, 10.1 oz tube (300 ml) | 18 in3 | 12 | Red | 00259580 |
| FS-ONE, 20.2 oz foil (600 ml) | 36 in3 ea | 25 | Red | 00377232 |
| FS-ONE, 5 gal pail (19 L) | 1155 in3 | 1 | Red | 00259578 |
| Mineral Wool (4 pcf density) (46" L x 24" W x 4" H) | 17,644 in3 | 1 | - | 00236993 |
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