Boss Fire FireMastic 300

Product Description

Flexible fire and acoustic rated acrylic intumescent sealant. Suitable for sealing joints, linear gaps and service penetrations. The 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.

• 5 hours industry leading mastic offering up to FRL of -/300/300
  
• Acoustic reduction up to 67dB
• Used for sealing linear gaps and around service penetrations such as ducts, dampers, cables and metallic pipes
• Certified for use in concrete, plasterboard, masonry, AAC, Hebel, Speedpanel, Korok, AFS, Shaftliner, Dincel and timber installations
• High yield, double the usage of most sealants
• Available in 310ml cartridge or 600ml foil sausages