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To perfect the building or construction of a dwelling requires a perfect finish. The best way to achieve a perfect finish is to ensure all holes, gaps and cracks are filled with products that are suited to a specific task.

Bostik fillers are specifically designed to help you achieve the best possible finish that will eliminate unsightly gaps or appearances between building materials, eliminate draughts to create a more energy efficient dwelling as well as prevent the invasion of insects and pests.


  • Product
Multi-purpose polyurethane foam filler
  • Product
Fire-resisting self-expanding polyurethane foam


Bostik polyurethane foam fillers are the perfect solution to quickly and easily reduce noise, dust and draughts as well as block access to cavities by rodents and other pests that can quickly invade an open space.

Fillers are great insulators against the weather and protect dwellings from the heat and cold while bonding to a variety of building materials to ensure large gaps are filled in the most difficult to reach locations. Once cured, it can be sanded to a smooth finish and painted over for a discrete appearance.


Cavities or gaps in building materials and structures pose a significant fire, smoke and gas risk that can take hold of a dwelling in mere seconds. Having the right level of protection not only reduces the rate at which fire can take hold but also gives the occupants a greater chance to escape to safety.

Bostik fire rated polyurethane foams have been formulated to be fire retardant and seal connections between walls, floors, ceilings, partition walls, windows and door frames against smoke and gas. This ensures that all Bostik fire rated polyurethane foam fillers meet AS1530.4-2014.