weberep rapifast CSR

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

weberep rapifast CSR is a fast hardening mortar for both wall rendering and floor screed application. It is formulated to provide high early strength and final strength with low shrinkage. The application thickness can reach 30 mm for wall rendering and 100 mm for floor screeding. weberep rapifast CSR is made from fast hardening cement, anti-shrinkage agent and waterproofing additives, which will develop high compressive strength within few hours, and allow bearing loading with minimum down time. The product is highly workable that enhances the application and smoothing process. weberep rapifast CSR is waterproofing that is suitable for using in kitchen and bathroom renovations.

25kg / bag


  • Kitchen and bathroom renovations
  • Fast hardening wall rendering, floor screed and concrete repair
  • Waterproofing screed application

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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
  • Waterproofing render and screed
  • Rapid hardening : screed hardened in 1 hour, reduce disturbance to users
  • Single component : fixed mixing proportion, ensure the quality of work
  • Single product for wall and floor levelling
  • Shrinkage compensated : reduce the chance of shrinkage cracks for thick layer application
  • Enchanced bond adhesion and compatible to parent concrete
  • Durable : can be used in interior and exterior areas
  • Pourable and highly workable
  • Non-toxic : environmentally friendly
  • No chloride content

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.