Seal N' Flex Advance


A next generation construction sealant

Bostik Seal N' Flex Advance is a high quality professional universal low modulus sealant based on hybrid technology. It cures under the influence of humidity to form a durable elastic rubber. 

Suitable Materials

  • Concrete
  • Render
  • Brickwork
  • Plasterboard
  • Fibre cement sheet
  • Stainless steel
  • Plastics
  • Aluminium
  • Granite
  • Sandstone
  • Marble

Recommended Uses

  • Precast and tilt up panels
  • Brickwork and blockwork
  • Plasterboard face and paper lined recessed edges
  • Aluminium windows
  • GRC, fibreglass and mostly specialty panel systems
  • Painted wood
  • A variety of plastics


  • 300ml
  • 600ml


  • White
  • Grey 
  • Black

Associated Videos

•     Excellent adhesion without primer to most, even damp, surfaces
•     Low modulus (±25% joint movement)
•     Moisture curing, almost odourless
•     Free of isocyanates, solvents and silicones
•     No shrinkage
•     No bubbling
•     Good resistance to UV, water and weather 

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