HILTI CFS-BTS Bottom Track Seal
Product description
- Preformed firestop solution for bottom-of-wall drywall joints — helps increase productivity on the job site and eliminate the need for slower, messier sealants.
Applications for use
- Firestop, smoke, and sound seal for the bottom of the wall joints between bottom track and drywall to flat and metal deck concrete slabs
- Tested and UL classified with standard 1-hour and 2-hour partition walls, resilient channel walls and shaft walls (5/8” and 1-1/4” available).
Advantages
- Easier to install under real job site conditions — compressible firestop joint seal suitable for installation in temperatures as low as 14°F (-10°C)
- Higher productivity — the preformed firestop replaces 5/8” drywall shims and works with kick-lifts to help save time and improve quality control of drywall install
- Zero waste — controlled material cost / easier to bid
- Sound and Leakage-rated joint seal — CFS-BTS firestop can provide STC ratings for fire/sound walls, and has been tested in accordance with L-rating compliance in smoke barrier walls (IBC)
- Compliance with LEED green building regulations provides industry-leading low VOC, LEED 4.1, and Red List (LBC) compliance
- No skilled labor required and may not be subjective to destructive testing.
Installation instructions
- See Hilti literature or third-party listings for application and installation details.
Technical Data
| Chemical basis | XLPE foam |
| Color | White / Red |
| Recommended Application temperature | 14° to 122°F (-10° to 50°C) |
| Storage and transportation temperature range | 14° to 122°F (-10° to 50°C) |
| Temperature resistance range | 14° to 122°F (-10° to 50°C) |
| Surface burning characteristics (ASTM E84-96) | Flame Spread: 0 Smoke Development: 0 |
| Surface burning characteristics (CAN/ULC-S102) | Flame Spread: 0 Smoke Development: 5 |
| Mold and mildew performance | Class 0 (ASTM G21-96) |
| Tested In accordance with | UL 2079 (5th Edition), CAN/ULC S115, ASTM D3575 Suffix L (modified) |
| LEEDv4.1 | CDPH Standard Method v1.2-2017 Compliant |
| LEED VOC | 1 g/L |
| Length | 72 in (6ft) |
| Acoustics performance | 63 (relates to specific construction) ASTM E90 |
| Shelf Life | Unlimited |
| Joint Width | 1/4” – 3/4” |
Product information
Order Information
| Designation | Sales pack quantity | Item number |
Bottom track seal CFS-BTS (5/8”) ① | 70 | 2331840 |
Bottom track seal CFS-BTS (1-1/4”) ② | 70 | 2331841 |
FILL, VOID OR CAVITY MATERIAL FOR USE IN JOINT SYSTEMS SEE UL FIRE RESISTANCE DIRECTORY.
Customer Support
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Documents / Resources
 | HILTI CFS-BTS Bottom Track Seal [pdf] Instructions CFS-BTS Bottom Track Seal, CFS-BTS, Bottom Track Seal, Track Seal, Seal |
 | HILTI CFS-BTS Bottom Track Seal [pdf] Installation Guide CFS-BTS Bottom Track Seal, CFS-BTS, Bottom Track Seal, Track Seal, Seal |
