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Bostik 600ml Firecaulk Fire Rated Acrylic Sealant Box of 20

by Bostik
$173.60 inc.GST
SKU BOS30840317

Fire Rated Acrylic Sealant

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
  • Designed for Australian conditions
  • Good flexibility joint movement +/- 25%
  • One part no mixing required
  • Very easy to apply and gives a smooth finish
  • Smooth gunnability 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 20°C
  • 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
  • Available in three colours, white, grey and limestone 

Where to Use

  • Residential
  • Commercial
  • Industrial


  • Internal Walls
  • External Walls
  • Concrete Floors


  • Concrete
  • Plasterboard
  • Masonry
  • Cladding

VOC Data Sheet
Technical Data Sheet


  • Item: Bostik Firecaulk
  • Quantity: Box of 20 sausages
  • Colour: Limestone & Grey
  • Size: 600ml ssg
  • Other: One pallet = 48 Box of 20