Firemastic 300 Acrylic Sealant intumescent 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 mean it offers up to a 63dB sound reduction, making it ideal for high performance STC installation.

Details
  • Category
    Fire Safety, Adhesives and Sealants
Key Benefits
  • 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
  • Approved to AS1530.4(2014), AS4072.1 and BS EN1366
  • Highly flexible, up to 40% movement
  • High yield so installation material costs and labour are both decreased
  • Gap widths up to 50mm
  • Available in standard colours of grey and white, other colours available upon request
  • Widely adaptable to seal around other passive fire products such as dampers, pillows, collars and batts
  • Can be painted once cured

Installation

  • Ensure that the gap, aperture and/or services in question are tested with BOSS FireMastic-300™ and the site conditions are within the application specification.
  • Ensure all surfaces are clean, dry and free from grease.
  • Use masking tape to provide straight edges around surfaces, if required for aesthetics.
  • Please refer to the page under backing rod to determine if a backing rod is required.
  • Cut nozzle to required bead size and apply to the substrate via a caulking gun. Smooth out sealant with a wet spatula within 5 minutes for a professional finish.
  • Clean tools immediately after use with water.
  • Tack dry within 30mins cures 3mm per 24hrs.­ 
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We aim to lead the market in innovation, delivery and service by building lasting mutually profitable customer relationships. Our production and management procedures ensure our products are manufactured from quality materials and to the highest standards. With branches in Auckland, Hamilton, Wellington and Christchurch, Potter Interior Systems provide quality solutions for customers throughout the country.

Potter Interior Systems
Firemastic 300 Acrylic Sealant

Potter Interior Systems