BOSS Intumescent Fire Dampers allow the bi-directional movement of air through fire rated walls and floors. In a fire situation the slats in the damper intumesces and swells to many times the original size, closing the damper and forming a solid fire barrier. They are simple to install, easy to identify, and economical to maintain. The BOSS Damper has slats of foil-covered intumescent material with a rigid steel frame.
FireMastic-300 intumescent Fire-Rated Acrylic Sealant is a one part acrylic emulsion that is designed to resist the passage of fire, smoke and sound. FireMastic-300 will intumesce and form a char when exposed to the heat of a fire, which will prevent the passage of fire and smoke for up to 5 hours in both integrity and insulation. In normal use it will also maintain the sound reduction index of a structure.
FireMastic-300’s superior acoustic properties means it offers up to a 63dB sound reduction, making it ideal for high performance STC installation.
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