General Purpose Boards

Masterboard

Masterboard is a versatile Class O building board, suitable for use in a wide range of internal and semi-exposed applications. It is of limited combustibility and can be used in constructions providing up to 60 minutes fire protection.

Masterboard is a calcium silicate board reinforced with selected fibres and fillers. It is formulated without inorganic fibres and does not contain formaldehyde.

The colour is off-white and the masterboard has a smooth finish on one face with a sanded reverse face. The masterboard is not classified as a dangerous substance, and can be disposed of in an on-site skip.

Properties

Surface spread of flames: Class O to the building regulations and Class 1 BS 476 Pt 7 - of limited combustibility to BS 576 Pt 11. Can provide 1/2 hour fire resistance and will not give off toxic smoke or gases in the event of a fire. Undamaged by moisture however some loss of strength will be experienced which is fully recovered on drying.

Main applications include soffits, partition wall and roof linings, ducts and pipe covers, and airing cupboard linings, integral garage ceilings. Fire doors. Unlike Supalux, Masterboard can be used externally in semi-exposed applications.

Alternatives

Siltech
Minerit Multipurpose

For more information please download the full brochure on General Purpose Boards from the 'Brochure Downloads' section.