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.
Advantages
- Water based
- Flexible set
- Contains mould growth inhibitor
- Freeze - thaw capabilities
- Paintable
- Accelerated age and humidity tested
- Low VOC
- Spray or brush applied
- Excellent smoke seal
- Water resistant
- Asbestos and solvent free
- Can be used for internal applications and for conditions where dynamic movement may occur.