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Bostik Firecaulk


Bostik Firecaulk

Product Code:


Bostik Firecaulk is a single component, non-sag, fire rated acrylic based gunnable sealant. A general purpose product for construction joints and the sealing of service penetrations in plasterboard, concrete floors and masonry wall constructions. Bostik Firecaulk is a gun grade acrylic based sealing compound specifically manufactured for sealing low movement interior joints (up to ± 25%) in masonry and plasterboard to provide a fire barrier for periods up to 4 hours.


Key Features

  • Fire rating for gaps up to 40mm
  • Good flexibility joint movement ±25%
  • One part, no mixing required
  • Very easy to apply and gives a smooth finish
  • Smooth gunnablility and tool off finish
  • Low odour
  • Non toxic
  • Asbestos free
  • Priming not normally required
  • Water clean up
  • Prevents the passage of hot gases
  • Paintable after 24 hours at 20oC
  • Water resistant after cure
  • Excellent adhesion to metal, wood, plasterboard, all masonry, AAC and Hebel
  • Acoustic capabilities with a 67 STC* rating in plasterboard construction