White High Strength Self Leveling Overlayment

VELOSIT SL 505 is a white cementitious self leveling overlayment for concrete floors. It creates an abrasion resistant smooth surface. It may also be used as a high strength underlayment for coatings and floor coverings.

Typical applications:

  • Interior and exterior floors
  • Leveling of concrete slabs and floors as a finished surface
  • Repair of surface defects on concrete floors
  • Application thickness from 3 mm (1/8”) to 15 mm (0.6“)


  • Minimal shrinkage/expansion under dry resp. wet curing conditions minimizing the risk of micro-cracking
  • Excellent flow with long slump life
  • Smooth surface profile
  • Fast air release with minimal requirement for agitation
  • 20 - 40 min. working time
  • Final strength of 40 MPa (5800 psi) after 28 days
  • Excellent adhesion to properly prepared concrete
  • Good resistance against CO2 and Chloride penetration due to a very tight pore structure
  • Excellent water resistance, no strength loss under water
  • Good weathering resistance
  • Good sulfate resistance
  • White color


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

Technical Data Sheet Safety Data Sheet Prospect Decorative Flooring Systems

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