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Watco Concrex Deep Fill

Economical and strong repair formula for deep holes

  • Fills holes up to 100mm deep in one layer
  • Ideal for heavy traffic areas
  • Easy to mix and apply
  • Interior and exterior use

Concrex® Deep Fill is ideal for filling deep holes quickly and economically! Repair deep holes in concrete floors with ease. Or for a smoother, feather-edged finish, please refer to other products in the Concrex® family.


  • Cost-effective: more economical than other Concrex® products for filling deep holes
  • Easy to use: mix the two components and apply
  • Priming: not usually required, however Watco Tack Coat is a recommended epoxy adhesive primer designed to increase bonding in difficult areas
  • Depth: apply from 15-100mm thick in one layer, reducing downtime
Suitable for Deep holes in heavily trafficked areas.
Surfaces Concrete, sand, cement and metal.
Interior or Exterior Interior and exterior.
Coverage 0.5m² per 25kg at 30mm thick.
Pot time (hours) 30 Minutes - 1 hour.
Curing time 5-6 hours at 15-20°C.

Surface preparation

Surfaces should be clean, dry and free of all loose material. Wire brushing or sweeping is generally sufficient. Watco Bio-D degreaser can be used to remove grease and oil. 


A primer is not usually required if patch or crack repairing. Watco Tack Coat adhesive primer is recommended when applying Watco Concrex as a thin section screed or when applying to smooth, non-porous or metal surfaces. Watco Tack Coat is always required with Concrex Vertical and Concrex Vertical Cold Cure.

Mixing and application

Each Watco Concrex pack contains a granular resinous compound and separate containers of curing agent. The components are mixed with a trowel according to the simple instructions in the pack until a smooth grey mortar is obtained. The more thorough the mixing, the ‘wetter’, smoother and more manageable the mix becomes. This can be achieved quite quickly by wearing disposable gloves and kneading the mixture by hand. A creteangle or similar mixer can be used to ensure thorough mixing of larger quantities. This is trowelled firmly against the surface to be repaired, and finished with a trowel or float. To prevent drag on the trowel, a rag moistened with white spirit may be wiped across the face of the tool.

£104.10 (Ex VAT)

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