weberep rapifast HY

Product formerly named: EMIX Rapifast HY
Saint-Gobain Weber Hong-Kong

weberep rapifast HY is a polymer modified mortar with rapid strength development for concrete repairing. It is formulated to provide high early strength materials for patching and repairing concrete and masonry surfaces. weberep rapifast HY develops high compressive strength within few hours, and allows bearing loading with minimum down time.

25kg / bag


  • Repair of highways, roads, car park driveways and ramps
  • Repair of manholes and potholes setting
  • Repair of industrial floor decks, loading bays, bridge decks and expansion joints
  • Pavements and floor screeds
  • Other uses which minimising repair time is of prime importance

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These results are approximate and are accurate to the best of our knowledge, they do not take into account wastage.
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Features and benefits

  • Formulated to comply with Hong Kong Standard and British Standard
  • Can be applied up to 100 mm in one layer
  • Rapid development of compression strength : > 20 MPa in 2 hours
  • Single component : fixed mixing proportion, easy to handle for repair works
  • Shrinkage compensated : reduce the chance of shrinkage cracks
  • Monolithic bond adhesion and compatible to parent concrete
  • Self-compacted : avoid honeycombing and voids
  • Durable : can be used in interior and exterior areas
  • Pourable and highly workable
  • Conventional concreting or plastering techniques required
  • Chloride free

Documentation and brochures

This product fits for these following projects

The information and physical data on this website is given to the best of our knowledge under standard testing method and controlled environment. The results may vary with different weather / site conditions, workmanship or substrates. This is beyond our control that we shall not be liable for any faults or consequences arising or associated with this. We suggest comprehensive tests to be conducted before final application. Unless specified, all technical data are average values with curing time of 28 days. We reserve the right to update or amend the contents in the light of new findings during the course of research and development.