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Top Face Surface Retarder

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Top Face Surface Retarder is an aqueous liquid suitable for either sprayer watering can application.It retards the set of the surface cement matrix of freshly cast concrete for easy removal.


  • Stain Free suitable for white and standard OPC
  • Enivronmentally and user Friendly
  • Alleviates need for labour intensive hacking
  • Contact with reinforcement will not prevent bond to concrete
  • Used to create exposed aggregate finish for decorative or 'keying in' work


  • Top Face surface retarder should be applied either by spray or watering can to freshly placed horizontally cast concrete at a rate of 5 sq.mts per litre immediately after placing and compacting and removal of any excess surface water.
  • After treatment protect from exposure to wind or early appliedheat as this may evaporate the retarder carrier before it haspenetrated the concrete surface.
  • Do not use on concrete containing accelerators.
  • Any absorbent covering to the concrete should not comeinto contact with treated face.
  • Retardation time is dependent on many factors so check for optimum time for removal of cement matrix.
  • Remove retarded matrix by low pressure waterjetting, brooming or wire brushing in two directions at right angles to each other.
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