INTERIOR BUILDING BOARDS

GENERAL CHARACTERISTICS

  • Building boards and sheets come in varying types, some supplied pre-primed or factory finished.
  • Manufacturers’ recommendations should be strictly adhered to.
  • Specific building board types are looked into below and painting recommendations given.

DIFFERENT TYPES OF BUILDING BOARDS

Asbestos Cement Boards & Sheets

Alkaline in nature and therefore any oil-based paints applied will result in Saponification if the sheets are damp.

Treatment

  • If the boards are likely to get damp by virtue of location (wall cavities or roof spaces), it is advised that the boards are primed first.
  • Apply the Sparcolux alkali resistant Solvent-based  Plaster Primer as a primer, which will serve to neutralise the high alkalinity.

     

Choose your topcoat from  one of our Sparcolux range of Wall & Ceiling paints.

Fibre Insulating Board

These boards are sometimes treated with flame retardant. Flame retardant may surface if boards come into contact with moisture.

Treatment

  • Avoid applying water thinned PVAs as the first coat, as there are risks of efflorescence.
  • Apply the Sparcolux alkali resistant Solvent-based  Plaster Primer  as an effective alkali resistant primer.
  • Be sure to prime backs, cut-edges and edges of fibre boards to reduce risk of buckling and bending.

     

Choose your topcoat from  one of our Sparcolux range of Wall & Ceiling paints.

Fibre Boards (Hard)

Hard surfaced boards of high density, e.g. Masonite

Treatment

  • Despite their hard, smooth surface the surface should NOT be rubbed down in preparation.
  • Solvent-based paints should NOT be applied directly to the board as the hardboard will interfere with the paint drying.
  • Prime the Hardboard with Sparcolux Plaster Primer.
  • Back priming is advised where condensation is likely.

Choose your topcoat from  one of our Sparcolux range of Wall & Ceiling paints.

Plasterboard/ Paper based board

Used extensively in dry-lining systems

Treatment

  • Manufacturers’ recommendations should be adhered to

Wood based board & Sheets

Includes wood chip and particle board. May be paper-faced

Treatment

Choose your topcoat from  one of our Sparcolux range of Wall & Ceiling paints.

Expanded Polystyrene tiles and Sheets

Polystyrene expanded products

Treatment

  • Manufacturers’ recommendations should be adhered to
  • Use water-based Wall & Ceiling paints only.
  • Solvent paints may attack the material while an oil-based paint constitute a fire hazard and therefore must NOT be applied.