PROMASTOP®-FIREBATT(50 mm and 60 mm) is a coated  mineral wool board used to reinstate the fire resistance performance of wall constructions where they have been provided with apertures for the penetration of single or multiple services.

PROMASTOP®-FIREBATT (50 mm and 60 mm) is supplied coated in both single and double coated versions. The board is cut and friction fitted into the aperture while using acrylic sealant.

PROMASEAL® Arylic Sealant is required to seal all joints and junctions during the sealing process. 


  • Fire resitance testing in walls, rigid floors, compostie panel, CLT wall and durasteel wall.
  • Air permeability
  • Acoustic isolation
  • Suitable for indoor use without additional environmental protection
  • Remains flexible 
  • Life expectancy of over 25 years
  • Suitable for large openings in walls and floors with additional supports