Description
Sikaflex-400 Fire is a one-part, moisture-curing, elastic polyurethane joint sealant that provides up to 4 hours fire resistance in accordance with AS 1530.4. With high movement capability and excellent workability, it is designed for fire-rated movement and connection joints on porous and non-porous substrates, indoors and out.
Features & Benefits
- Up to 4 hours fire resistance (AS 1530.4)
- High movement capability: ±25% (ISO 9047), ±35% (ASTM C719)
- Excellent workability and easy to tool
- Good adhesion to a wide range of substrates
- Long open time; internal and external use
Where to Use
- Fire-rated movement and connection joints
- Penetrations on porous and non-porous substrates
Specifications
| Chemical base |
1-part polyurethane (moisture-curing) |
| Colour |
Grey |
| Packaging |
600 ml foil sausage |
| Movement capability |
±25% (ISO 9047) |
| Skinning time |
~180 min (23°C / 50% r.h.) |
| Cure rate |
~2.5 mm / 24 h |
| Service temperature |
−40°C to +70°C |
| Application temperature |
+5°C to +40°C |
| Density |
~1.40 kg/L |
| Fire rating |
Up to 4 hours (AS 1530.4) |
| Shelf life |
12 months |
Storage
Store in original, unopened packaging in dry conditions between +5°C and +35°C.
Safety
Not suitable for natural stone, bituminous substrates, natural/EPDM rubber, swimming pools or permanent water immersion. Always confirm certification requirements with the relevant certifying authority before use in a fire-rated application. Refer to the Safety Data Sheet before use.
