RB 1.12 Waterproof Mortar

Rockbond Waterproof Mortar Mix (1.12) forms a waterproof lining for areas where water is to be stored; water tanks, reservoirs and water treatment plants. It can also be used to repair marine structures and sea walls. Further, it will provide, a breathable, but waterproof rendered finish to the external walls of houses and commercial buildings. It can even be pump/spray applied where large enough volumes permit.


  • Most suitable for projects that come into contact with water
  • Original construction and repair work for both brick and block work
  • Bridge Repair
  • Sewer Repair
  • Seawall Repair
  • Water Tank Repair
  • Reservoir Lining
  • Pumpable Mortar.