High Strength Cementitious Waterproofing Slurry

VELOSIT WP 101 is a cementitious waterproofing slurry for concrete and masonry. It is a good substrate for coatings and overlays.  It is especially strong against negative side water pressure.

Typical applications:

  • Waterproofing of basements and below grade parking structures
  • Waterproofing of potable water structures
  • Waterproofing of elevator pits
  • Waterproofing against rising dampness in walls
  • Negative side waterproofing underneath flexible waterproofing membranes
  • Prime coat to fill blow holes, honeycombs and surface roughness


  • Minimal shrinkage/expansion under dry resp. wet curing conditions
  • Hydrophobic
  • Resists 130 m (400 ft.) water pressure acc. to EN 12390-8
  • 45 min. working time and 12 MPa 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
  • Ready for water pressure after 24 h
  • Very good adhesion to concrete and masonry
  • Water curing only under hot and dry conditions required for max. 4 hours
  • No cracking if applied too thick
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