mcr Tecbor - magnesium board systems (MgO)

Technical Approval: ITB no. AT-15-9505/2015

National Declaration of Performance KDWU/HZ/06/2017


The mcr Tecbor boards are a modern construction material designed for building fire-retardant cladding of construction components, as well as building independent components with a declared fire resistance class, e.g.:

  • steel structures
  • reinforced concrete structures
  • cable routes
  • ventilation and smoke exhaust ducts
  • non-bearing partitions
  • masonry walls
  • drop-down ceilings
  • curtain walls
  • protecting the structures of communication tunnels

They can also be used for the construction of housings of machines, industrial equipment and fireplaces, as well as for fire barriers in ventilation dampers.

Their physical and mechanical properties, e.g. non-combustibility (class A1 as per EN), fire-retardancy and good thermal insulation, ensure successful applications in both general and industrial construction. The mcr Tecbor magnesium boards can be used in place of OSBs, fibre cement boards and gypsum boards.


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  • high fire resistance, non-flammability
  • good thermal insulation
  • quick and easy installation
  • good mechanical resistance
  • no substances hazardous to life
  • resistance to fungi, insects and rodents
  • non-combustible product, reaction to fire class A1 as per EN 13501-1
  • heat transfer factor ~0.292 W/mK
  • available sizes: 1,220 x 2,300 mm, 1,200 x 2,300 mm or 1,200 x 2,400 mm
  • thicknesses: 10, 12, 15, 20, 23, 24, 25, 30, 40 mm
  • thicknesses of tunnel boards: 30, 40 mm
  • (other dimensions or beveling at request)


The light-coloured smooth external surface of the board makes it usable without any additional coating (plastering, painting, or stone or ceramic tiling is possible later).

Additional materials: mcr Tecbor Joint Paste, mcr Tecbor Adhesive.