Bostik Xtreme Fire Seal Resistant High Performance Sealant Cartridge White 290ml

Bostik Xtreme Fire Seal Resistant High Performance Sealant Cartridge White 290ml

Regular price $29.99
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Bostik Xtreme Fire Seal is a high performance and durable single component fire retardant sealant based on MSP (Modified Silyl - Polymer) technology. Xtreme Fire Seal absorbs movements up to 25% and cures with the aid of atmospheric humidity to form a durable elastic rubber.

Bostik Xtreme Fire Seal can be used for fire resistant sealing of connection and expansion joints in construction, which in case of fire should have fire resistance. Xtreme Fire Seal prevents the spread of fire, smoke and/or toxic gases. Also applicable for horizontal joints and connection of floor/ceiling with walls. Fire resistance has been tested in accordance with AS 1530.4 until 240 minutes in a horizontal and vertical (movement) joint of 30mm wide.


  • Water potable - Tested in accordance with AS 1530.4-2005
  • Up to 4 hours of fire resistance
  • Also suitable for wall/ceiling and wall/floor joints
  • Applicable for joints up to 30mm wide
  • Prevents unwanted airflows
  • Excellent processing and easy toolability
  • Accommodates joint movement up to 25%
  • Paintable with most water and oil based paints
  • Resists fungus and vermin
  • Not corrosive towards metals
  • UV, weather and water resistant
  • Durable and odourless

Suitable for:

  • Stone
  • Concrete
  • Glass
  • Plasterboard
  • Ployurethane
  • PVC
  • Hard Plastics
  • Enamel
  • Ceramic
  • Copper
  • Lead
  • Zinc
  • Aluminium
  • Alloys
  • Stainless Steel
  • HPL & Cement Fibre Panels
  • Wood & Paint Systems


  • Colour: White
  • Viscosity: Smooth, paste like consistency
  • Composition: MS Polymer
  • Curing method: Moisture curing
  • Temperature resistance: -40°C to 90°C
  • Shore A hardness: 24(DIN 53505)
  • 100% Modulus: 0.49MPa
  • Application temperature: 5°C to 40°C
  • Frost resistance during transportation: Until -15°C
  • Flow: <2mm (ISO 7390)
  • Cure rate: 2-3mm per day at 23°C/50% RH
  • Skin time: 10 mins @ 23°C/50% RH
  • Specific gravity: 1.48g/ml
  • Elongation at break: 350%
  • Joint movement: 25%
  • Tensile strength: 0.96MPa

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