Vertical and Overhead Structural Concrete Repair Mortar R4 for 1 - 50 mm

VELOSIT RM 204 is a cementitious repair mortar for concrete restoration acc. to EN 1504-9. It creates a very smooth surface for coatings and overlays.

Typical applications:

  • Repair of surface defects on concrete
  • Overlays and repairs on concrete structures like dams, bridges, beams, balconies, facades
  • Application on horizontal and vertical incl. overhead areas
  • Filling of blow holes, honeycombs and surface roughness
  • Application thickness from feather-edge to 50 mm (2”)


  • Minimal shrinkage/expansion under dry resp. wet curing conditions minimizing the risk of micro-cracking
  • Excellent workability especially overhead
  • Fiber reinforced
  • Hydrophobic
  • 60 min. working time and 10 MPa (1450 psi) compressive strength after 4 hours
  • Final strength of more than 50 MPa (7250 psi) after 28 days
  • Open to foot traffic after 3 - 4 hours
  • Excellent adhesion to properly prepared concrete
  • Water curing only under hot and dry conditions required for 3 - 4 hours


Here you can find detailed information about the selected VELOSIT product.

Technical Data Sheet Safety Data Sheet Prospect Concrete Repair

Associations & Memberships:

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