Hilti Firestop Foam CFS-F FX
Technical Manual
European Technical Assessment ETA 10/0109
FLEXIBLE FIRESTOP FOAM CFS-F FX
Hilti Firestop Foam CFS-F FX is a versatile foam sealant designed for firestopping applications in various construction scenarios.
Applications
- Electrical: Sealing of cable conduits, cables, cable bundles, cable trays, and cable trunking.
- Mechanical: Sealing of metal & plastic pipes, composite pipes, and split AC unit piping.
- Mixed Penetration Seals: Suitable for sealing combined penetrations.
- Repenetration: Can be used for repenetration with single cables.
- Approvals: Approved in combination with Hilti CFS-BL firestop blocks, particularly for large openings or specialized industrial applications (e.g., telecom, industrial).
Advantages
- The foam can be easily shaped during the curing process for a neat and tidy application.
- It is quick and easy to install, providing a reliable firestop seal with a single product.
- Maintenance and retrofitting of cables are simplified.
- Single-sided installation is possible.
- Offers smoke-tightness and firestopping with a single system.
Technical Data
| Characteristic | Details |
|---|---|
| Base materials | Concrete, Masonry, Drywall |
| Approvals | ETA-10/0109 |
| Repenetration | Easy |
| Approx. tack-free time (at 23 °C/50% rel. humidity) | 5 min |
| Approx. curing time1) | 10 min |
| Application temperature range | 10 - 35 °C |
| Temperature resistance range | -30 - 60 °C |
| Storage and transportation temperature range | 5 - 25 °C |
| Required dispenser | HDM 330, HDE 500 |
| Content per can / cartridge | 325 ml |
Accessories
| Ordering designation | Item number | Sales pack quantity |
|---|---|---|
| HDM 330 manual dispenser | 2036319 | 1 pc |
| HDE 500-A22 cordless dispenser | 2005637 | 1 pc |
GENERAL INSTRUCTIONS FOR USE
The following steps illustrate the general application process for Hilti Firestop Foam CFS-F FX:
- Prepare the opening and the penetrating items.
- Apply the foam to the opening, ensuring complete coverage.
- Use the appropriate Hilti dispenser (e.g., HDM 330, HDE 500-A22).
- Ensure the foam expands to fill the entire void.
- Allow the foam to cure according to the specified time.
- Trim excess foam if necessary.
- The system is now ready for further treatment or inspection.
CONSUMPTION GUIDE
The following tables provide an estimate of the number of 325 ml cartridges required for various opening sizes and penetration fill levels.
Circular opening – 200 mm depth
| Opening Ø (mm) | Visual fill of penetrating items | |||
|---|---|---|---|---|
| 0% | 10% | 30% | 60% | |
| 90 | 1.0 | 1.0 | 1.0 | 0.5 |
| 120 | 1.5 | 1.5 | 1.0 | 1.0 |
| 140 | 2.0 | 2.0 | 1.5 | 1.0 |
| 160 | 2.5 | 2.5 | 2.0 | 1.0 |
| 180 | 3.0 | 3.0 | 2.5 | 1.5 |
| 200 | 4.0 | 3.5 | 3.0 | 1.5 |
| 220 | 4.5 | 4.0 | 3.5 | 2.0 |
| 240 | 5.5 | 5.0 | 4.0 | 2.5 |
| 250 | 6.0 | 5.5 | 4.0 | 2.5 |
| 280 | 7.5 | 6.5 | 5.0 | 3.0 |
| 300 | 8.5 | 7.5 | 6.0 | 3.5 |
| 320 | 9.5 | 8.5 | 6.5 | 4.0 |
| 340 | 10.5 | 9.5 | 7.5 | 4.5 |
| 350 | 11.5 | 10.0 | 8.0 | 4.5 |
| 400 | 14.5 | 13.5 | 10.5 | 6.0 |
Rectangular opening – 200 mm depth
| Opening (mm) | Visual fill of penetrating items | ||||
|---|---|---|---|---|---|
| Width | Height | 0% | 10% | 30% | 60% |
| 50 | 100 | 1.0 | 1.0 | 0.5 | 0.5 |
| 100 | 100 | 1.5 | 1.5 | 1.0 | 0.5 |
| 100 | 150 | 2.0 | 2.0 | 1.5 | 1.0 |
| 100 | 200 | 2.5 | 2.5 | 2.0 | 1.0 |
| 100 | 250 | 3.0 | 3.0 | 2.5 | 1.5 |
| 100 | 300 | 3.5 | 3.5 | 2.5 | 1.5 |
| 200 | 200 | 5.0 | 4.5 | 3.5 | 2.0 |
| 200 | 225 | 5.5 | 5.0 | 4.0 | 2.5 |
| 200 | 250 | 6.0 | 5.5 | 4.5 | 2.5 |
| 200 | 300 | 7.0 | 6.5 | 5.0 | 3.0 |
| 200 | 400 | 9.5 | 8.5 | 6.5 | 4.0 |
| 300 | 300 | 10.5 | 9.5 | 7.5 | 4.5 |
| 300 | 350 | 12.5 | 11.0 | 8.5 | 5.0 |
| 300 | 400 | 14.0 | 12.5 | 10.0 | 6.0 |
| 400 | 400 | 18.5 | 17.0 | 13.0 | 7.5 |
GENERAL INFORMATION
The following diagrams illustrate the general principles for applying Hilti Firestop Foam CFS-F FX in different construction elements.
Partition
- Base material thickness (te): ≥ 100 mm
- Opening size: ≤ 600 x 600 mm or Ø ≤ 600 mm
- Total service surface: ≤ 60% of surface of the opening
Flexible wall
- Base material thickness (te): ≥ 100 mm
- Opening size: ≤ 600 x 600 mm or Ø ≤ 600 mm
- Total service surface: ≤ 60% of surface of the opening
Rigid wall
- Base material thickness (te): ≥ 100 mm
- Opening size: ≤ 600 x 600 mm or Ø ≤ 600 mm
- Total service surface: ≤ 60% of surface of the opening
Floor
- Base material thickness (te): ≥ 100 mm
- Opening size: ≤ 400 x 400 mm or Ø ≤ 400 mm
- Total service surface: ≤ 60% of surface of the opening
Penetration Types and Approvals
| Penetration | Penetration Ø | Flexible wall | Rigid wall | Rigid floor |
|---|---|---|---|---|
| Blank seal | N/A | El 90 | El 120 | El 120 |
| Cables, Cable bundles | Cables Ø ≤ 80 mm, Bundles Ø ≤ 100 mm | El 90 | El 120 (ta ≥ 100 mm) | El 120 (ta ≥ 150 mm) |
| Metal conduits | Ø ≤ 16 mm | El 60 up to El 120 (ta ≥ 100 mm) | El 120 (ta ≥ 150 mm) | El 120 (ta ≥ 150 mm) |
| Plastic conduits | Ø ≤ 16 mm | El 120 | El 120 (ta ≥ 200 mm) | El 120 (ta ≥ 200 mm) |
| Flexible / rigid plastic conduits | 16 mm ≤ Ø ≤ 32 mm | El 90 up to El 120 (ta ≥ 100 mm) | El 120 (ta ≥ 150 mm) | El 120 (ta ≥ 150 mm) |
| Bundles of plastic, conduits | Ø ≤ 100 mm bundle | El 120 (ta ≥ 200 mm) | El 120 (ta ≥ 200 mm) | El 120 (ta ≥ 200 mm) |
| AL composite pipes | 16 mm ≤ Ø ≤ 32 mm | El 120 (ta ≥ 200 mm) | El 120 (ta ≥ 200 mm) | El 120 (ta ≥ 200 mm) |
| Penetration | Penetration Ø | Flexible wall | Rigid wall | Rigid floor |
|---|---|---|---|---|
| Non-insulated metal pipes | 28 mm | El 90 (ta ≥ 200 mm) | El 90 (ta ≥ 200 mm) | El 90 (ta ≥ 200 mm) |
| Metal pipes with mineral wool insulation | 12 mm Ø ≤ 168 mm | El 60 up to El 120 (ta ≥ 150 mm) | El 120 (ta ≥ 150 mm) | El 120 (ta ≥ 150 mm) |
| Metal pipes with Armaflex insulation | 6 mm Ø ≤ 42 mm | El 60 up to El 120 (ta ≥ 150 mm) | El 120 (ta ≥ 200 mm) | El 120 (ta ≥ 200 mm) |
| Metal pipes with Armaflex insulation with CFS-B Firestop Bandage | 28-114 mm | El 60 up to El 120 (ta ≥ 150 mm) | El 120 (ta ≥ 150 mm) | El 120 (ta ≥ 200 mm) |
| Plastic pipes | ≤ 50 mm | El 120 (ta ≥ 150 mm) | El 120 (ta ≥ 200 mm) | El 120 (ta ≥ 200 mm) |
| Plastic pipes with CFS-B PE/PVC | 50-110 mm | El 120 (ta ≥ 200 mm) | El 120 (ta ≥ 200 mm) | El 120 (ta ≥ 200 mm) |
Excerpt of ETA document. Check the exact field of application (cable types and diameters, pipe types/diameters and wall thickness/insulations type) in the ETA 10/0109 document.
OTHER APPROVED APPLICATIONS
Hilti Firestop Foam CFS-F FX is also approved for the following applications:
- Framing for thicker seals than partition thickness.
- Local / continued and sustained / interrupted insulation affecting El classification.
- Metal and plastic pipe through wall / floors inside PVC cast-in sleeve.
- Mixed penetrations (pipes, cables, conduits).
- "Clima Split" bundles of pipes, cables and PVC-U pipes.
Refer to the ETA for more details on these applications.
CHARACTERISTICS OF CFS-F FX
| Characteristics | Flexible wall | Rigid wall |
|---|---|---|
| Health and the environment Air permeability (gas tightness) |
A p 50 Pa ⇒ 0.0007 q/A [m³/(h x m²)] (174 mm thickness of layer) A p 250 Pa ⇒ 0.0033 q/A [m³/(h x m²)] Permeability regarding air |
EN 1026 |
| Dangerous substances | Below any respective occupational exposure limits as far as such limits exist. | Material safety data sheet |
| Safety in use Resistance to impact / movement / Mechanical resistance and stability / Adhesion |
Soft body impact: Energy 1200 Nm Hard body impact: Energy 10 Nm |
EOTA Technical Report TR001, A1 |
| Protection against noise (Airborne sound insulation) | Rw (C; Ctr) = 61 (-2; -6) dB Dn,e,w (C; Ctr) = 69 (−2; −7) dB |
EN ISO 140-3 EN ISO 20140-10 EN ISO 717-1 |
| Durability and serviceability | Category Y2 (suitable for penetration seals intended for use at temperatures between - 20 °C and + 70 °C) no exposure to rain or UV. May be coated with acrylic dispersion, alkyd resin, polyurethan / acrylic and epoxy resin). |
EOTA Technical Report TR024 EAD 350454-00-1104:2017 |
| Reaction to fire | Class E | EN 13501-1 |
