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Product Information
Technical Datasheet
Safety Datasheet


CEMENTITIOUS COATING 851 is a two component, thixotropic, polymer modified, cementitious waterproofing coating. It cures to form a hard, durable, highly alkaline coating with a degree of elasticity which protects concrete and other mineral substrates from the effects of aggressive acid gases and chlorides and water ingress.

Features & Benefits:

  • Incorporates the latest proven cement chemistry, microsilica, fibre and styrene acrylic copolymer technology.
  • Pre-packaged material only requiring mixing on-site.
  • Brush, trowel or spray applied normally in two coats.
  • Floors and decks only require a single coat application.
  • Excellent adhesion to sound prepared concrete.
  • Dense matrix offers low permeability to water at 10 bar positive and negative pressure and very high diffusion resistance to a carbon dioxide gas and chloride ions.
  • Provides the equivalent of 100mm of good quality concrete cover.
  • Protects concrete in sulphate contaminated ground conditions.
  • Non-toxic when cured and listed as authorised for use under Regulation 31 for use in the supply of drinking water.
  • Easily overcoated with specialist membranes to provide further protection and aesthetic properties.


  • Internal and external structural waterproofing of concrete and other mineral substrates.
  • Provides chloride protection on highway and coastal structures and enhances the durability of reinforced concrete by reinstating effective cover to achieve the specified design life.
  • Suitable for surface protection systems principles 1.3, 2.2, 8.2 as defined in BS EN 1504 -2.