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Boss FireMastic
300

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Flexible fire and acoustic rated acrylic intumescent sealant. Suitable for sealing joints, linear gaps and service penetrations. Our 5 hour fire rated sealant offers the best fire rating of all acrylic and PU sealants on the market, offering maximum protection from fire and smoke in both integrity and insulation.
With an FRL of up to -/300/300, FireMastic-300™ is unrivalled.

As an acrylic emulsion, FireMastic-300™ is simple to use and cleans up easily in water.

Key benefits

Installation

 

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