Costar Mortar 10 is a blended mix of Portland cement, sand, and special additives specifically designed for plastering work on block walls, concrete surfaces, bricks and general filling up internally and externally.


  • Suitable for creating a leveled surface on a very uneven masonry or concrete.
  • Suitable for smoothing walls and ceilings before final treatment is applied.
  • Internal and External application
  • Suitable for filling holes and irregularities, leveling, and covering ceilings during renovation work.
  • Suitable for direct application to mineral-based substrates such as gypsum boards or plastered surfaces.
  • Repairing, leveling, and undercoating old rendered surface.

Available in 20kg Bags.