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.
Features & Functionality
Water based
Flexible set
Contains mould growth inhibitor
Freeze – thaw capability
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.
Product Variants:
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