Description
Fischer rapid fire resistant sealant RFS 640 is a spray grade one part water based, fire rated sealant which has been design to provide smoke and fire protection on construction joints and service penetrations in both vertical and horizontal applications. Tested in accordance with ASTM E 814 (UL1479), ASTM E 1966 (UL 2079), ASTM E 2307, ASTM E 84 (UL723) the fischer RFS can provide up to 3 hours fire rating.
Specifications
| Chemical base | Water-based |
|---|---|
| Density | Approx 1.25 g/cm³ |
| Application temperature | +5 °C to +40 °C |
| Skin-forming time at 25 °C | Approx. 30 - 45 minutes* |
| Curing time at 25 °C | Approx. 5 - 7 days* |
| Storage temperature | +2 °C to +49 °C |
| Movement capability | Up to 50 %** |
| Water resistant | Yes |
| Shelf life | 36 months from manufacturing (under recommended conditions) |
| pH Value | 7 to 8 |
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