Velosit SL 502

Velosit SL 502

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VELOSIT SL 502 is a cementitious self leveling underlayment for concrete substrates. It creates a very smooth surface for coatings and floor coverings.

Typical applications:

  • Interior and exterior use
  • Suitable for permanently water immersed applications
  • Leveling of concrete slabs and floors
  • Cosmetic repair of surface defects on concrete floors
  • Structural repair of concrete 
  • Application thickness from 1/8” (3 mm) to 2“ (50 mm). 5″ (13 cm) when extended with aggregate
  • Self leveling screed
  • Floor heating systems


  • Minimal shrinkage/expansion under dry or wet curing conditions minimizing the risk of micro-cracking
  • Excellent flow with long pot life
  • Smooth surface profile
  • Fast air release with minimal requirement for agitation
  • Ready for covering with ceramic tiles after 4 hours, for moisture sensitive floor coverings after 12 hours.
  • 30 – 40 min. working time and 2340 psi (16 MPa) compressive strength after 4 hours