Description
Sika Boom-420 Fire is a one-part, self-expanding polyurethane foam that restores the fire-resistance performance of floors and walls at linear seals, providing up to 180 minutes fire resistance in accordance with AS 1530.4. Its combi-valve allows both gun and nozzle (straw) application.
Features & Benefits
- Up to 180 minutes fire resistance (AS 1530.4), depending on configuration
- Combi-valve for gun or nozzle application
- One-part and ready to use; safety valve for extended shelf life
- Cured foam can be cut, trimmed and sanded
- Thermal and acoustic insulation
Where to Use
- Fire-rated linear seals in floors and walls
- Filling and sealing joints requiring fire protection (interior use)
Specifications
| Chemical base |
1-part polyurethane foam |
| Colour |
Pink |
| Packaging |
750 ml canister (gun / nozzle) |
| Tack-free time |
~7 min |
| Cutting time |
~25 min (gun) / ~40 min (nozzle) |
| Yield |
~44 L (gun) / ~30 L (nozzle) |
| Cured density |
17 kg/m³ (gun) / 30 kg/m³ (nozzle) |
| Service temperature |
−40°C to +80°C |
| Fire rating |
Up to 180 min (AS 1530.4); ETA 24/0105 |
| Shelf life |
12 months |
Storage
Store dry and upright between +10°C and +20°C, protected from direct sunlight.
Safety
Interior use only; not UV-stable; not for structural or mechanical fixing. Pressurised canister – keep away from heat and direct sunlight. Pre-dampen the substrate to ensure correct cure. Always confirm certification requirements with the relevant certifying authority before use in a fire-rated application. Refer to the Safety Data Sheet before use.
