Polymer modified cementitious fairing coat

  • Requires only on site addition of water, easy to apply
  • Shrinkage compensated and crack resistant
  • Excellent adhesion to concrete

Features and benefits

Polymer modified cementitious fairing coat to fill pores, blowholes, minor honeycombs on a concrete surface.



POLYBIT® POLYCRETE FCX can be used as a skim coat and as an aesthetic mortar; to repair and fill honeycombs, blowholes on concrete surfaces; smoothen out damaged patches on concrete surfaces, due to shutter movement and grout loss; as fairing coat prior to the application of protective coatings. Available pack size: 20kg.

Documents and downloads

How to use


Clean the concrete surface of all contaminants like oil and grease, traces of curing compound and loosely adhering particles. The cleaning can be done by sand/grit blasting, high pressure water jet or mechanical scabbling. Saturate the concrete surface with clean potable water prior to the application of the fairing coat. However, ensure that the surface is free of standing water prior to the application of the fairing coat.


Polycrete FCX shall be mixed with 5.6 to 6.6L water at a w/p ratio of 0.28 to 0.33. Pour the required quantity of water in a separate mixing container. Slowly add the powder to the water and mix continuously with a mortar paddle mixer fitted to a slow speed drill (300/400 rpm) till a homogenous and lump free consistency is achieved. Apply the mixed mortar with a steel trowel evenly on to the concrete surface within its working time. Allow the coat to partly set before finally toweling it to achieve a smooth finish. For achieving a very smooth finish, sprinkle water on the surface and smoothen the surface with the steel trowel. The fairing coat shall be finished by striking off with a straight edge and closed with a steel or plastic float. 


Water can be drawn to the surface if “overworking” with the float occurs resulting in an unsightly finish. Damp sponges or plastic floats may be used to achieve a desired surface texture, but care should again be taken not to overwork the surface.
Due to the presence of rapid drying polymers in the fairing coat, the applied mortar has to be protected from hot and drying winds. Curing can be done either by the use of a non-degradable type of curing compound or continuous wetting of the surface with water. When cured with wet hessian cloth, the area shall be covered immediately with a high density polyethylene sheet which shall be taped to all the edges which has been repaired. Note: Optimal addition of 0.8 to 1.2L Polybond SBR (by reducing the equal volume of water) per 20kg bag Polycrete FCX, will increase the cohesion strength of the fairing coat. 

Related articles

  • Bitustick Cool

    The Next Generation of Performed Bituminous Coatings 

  • Foundations and Roofing Systems

    Discover, feel and touch our systems, through our mockup simulation boxes 

  • Wet Areas and Flooring Systems

    Discover, feel and touch our systems, through our mockup simulation boxes 

  • Polycryl FR

    The Ultimate Fire Rated Coating Solution 

  • Polycryl PF

    Strong UV protection For Polyurethane Foam Roof  

  • Bituplus Ultra

    The Ultimate Torch On Membrane Range 

Related products

  • ${/content/heliux/adhesive/polybit/com/en/products/central-pdp#/polybit-polycrete-fc/SAP_0201VLP34GG9/searchResult.productFields.MainImageAltText}
    POLYBIT Polycrete FC
    Polymer modified cementitious fairing coat single component polymer modified fairing coat designed to fill pores, blowholes, minor honeycombs on a concrete surface. 

Frequently asked questions

It is not mandatory to use any bonding agent or primer for the new concrete. Only surface saturation is required with clean sweet water. But no logged water.

Acrylic/PVA/SBR/Epoxy based bonding agents are recommended depending on the condition of the substrate.

Yes. It is a shrinkage compensated product