Flexible Cementitious Waterproofing Slurry

VELOSIT WP 124 is a polymer modified cementitious waterproofing slurry for concrete, stone and masonry.  VELOSIT WP 124 creates a good barrier against water and carbon dioxide whilst maintaining good crack bridging capabilities. VELOSIT WP 124 is a good substrate for coatings and overlays with good abrasion resistance.  VELOSIT WP 124 can be processed to a flexible or semi-flexible product depending on the polymer addition.

Typical applications:

  • Basements and below grade structures
  • Potable water structures
  • Dams and spillways
  • Covered roofs
  • Terraces and balconies below tiles and natural stone
  • Small & medium sized swimming pools
  • Inaccessible and lightly trafficked roofs
  • Planted roofs of residential villas


  • Crack bridging
  • High flexibility, tensile elongation > 60 % (25A+8B)
  • Resists 50 m (160 ft.) water pressure according to EN 12390-8
  • 60 min. working time
  • Final strength is achieved within 7 days
  • Open to foot traffic after 5 hours (23 °C/RH 60 %)
  • Ready for water pressure after 5 days
  • Very good adhesion to concrete and masonry
  • Good resistance against aggressive media with a pH range of 3-12 and against soft water with low ion content
  • Good weathering resistance
  • Improved sulphate resistance

Associations & Memberships:

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