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EVERBUILD FIREFOAM B2 GUN GRADE  is a quick setting one part polyurethane foam with fire resistance properties. The foam expands on application to up to 50 times its original volume and meets the requirements of DIN 4102 Part 1 for Construction Materials and BS476 Part 20. Fire rated up to 2 hours in certain joint configurations. Copies of the independent test certificate, Warrington fire report number 160902 are available on request.

Once cured, the foam can be cut, sawn or plastered over after only one hour providing the working temperatures (can and surfaces) are between +5 to +25oC, ideally 20oC.


· High degree of fire rating: slows down the passage of flames and smoke in comparison to standard B3 grades

· Quick setting - can be cut, sawn or plastered in 1 hour.

· Economical in use - expands up to 50 times its original volume.

· Fills irregular and broad gaps where most conventional fillers would fail.

· Possesses insulating and sound deadening properties.

Areas for Use


  1. gaps around pipe entries through fire rated walls
  2. To provide a fire rated seal around window and door frames
  3. Electrical wire chasing prior to plastering, where a fire rating is required.
  4. deep joints prior to applying sealant or plaster
  5. irregular gaps in stone, brick, concrete or plaster


  1. door frames
  2. timber structures
  3. Windowsills and thresholds.
  4. Window frames


  1. Behind cladding to exterior walls.
  2. behind soffit and barge boards
  3. In automotive applications.

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