Fire Mastic & Sealants

 

FR ACRYLIC

Designed to prevent the spread of fire and smoke through joints and openings in fire rated walls and floors (including openings formed around building service penetrations); Hero Fireproof® FR Acrylic will also maintain acoustic design performance.

  • When subjected to atmospheric conditions, the sealant cures however, it will retain a degree of elasticity for joint movement. Under fire exposure, Hero Fireproof® FR Acrylic creates a robust fire seal by the formation of a durable intumescent char.

    Hero Fireproof® FR Acrylic can be used with a suitable filling material i.e. stone wool or Hero Fireproof® backing material in order to secure correct width to depth ratio, and to reduce the shrinking of the sealant during curing. Minimum depth and maximum width of the joints are included in the installation instructions. Thermal activation takes place at approx. 180°C when the material will expand (intumesce) and prevent the passage of fire and smoke for periods up to and beyond 4 hours.

    Mineral fibres coated with Hero Fireproof® FR Coating are designed to prevent the spread of fire and smoke through openings in fire rated walls and floors, also where openings are formed to allow the installation of multiple building services. The system will also maintain the acoustic design performance.

 

FR GRAPHITE

Hero Fireproof® FR Graphite is a high specification formulation designed to prevent the spread of fire, smoke and gases through openings in fire rated walls and floors. Hero Fireproof® FR Graphite expands when it is subjected to fire and closes openings around penetrations when any combustible or low temperature melting materials have burnt away.

  • Hero Fireproof® FR Graphite is designed to fire seal difficult services which traditional fire rated mastics do not achieve such as large plastic pipes.
    Hero Fireproof® FR Graphite can be used with a suitable filling material, i.e. stone wool or Hero Fireproof® Backing material in order to ensure correct width to depth ratio and to reduce the shrinking of the sealant during curing. Minimum depth and maximum width of the joints are included in the installation instructions. Thermal activation takes place at 150 °C when the material will expand (intumesce) to prevent the passage of fire and smoke for periods up to 4 hours.