VELOSIT® SC 250

Economic Flowable Screed Cement

VELOSIT SC 250 is a cementitious binder for flowable screed mixes produced on-site or at a batch plant. It is mixed with sand and aggregates creating a fast hardening screed.

Typical applications:

  • Interior and exterior use
  • Bonded screeds 
  • De-coupled screeds on insulation or membranes
  • Especially optimized for processing from 2 chamber silos or mobile screed processing units
  • Suitable for floor heating systems

Properties:

  • Minimal shrinkage/expansion under dry resp. wet curing conditions minimizing the risk of micro-cracking
  • Excellent flowable workability 
  • Variable water addition
  • Ready for covering with ceramic tiles after 3 days, for moisture sensitive floor coverings after approx. 10 days.
  • 90 min. working time and 12 MPa (1740 psi) compressive strength after 24 hours
  • Final strength of more than 30 MPa (4350 psi) after 28 days with suitable sand quality and 32% water addition
  • Very good adhesion to properly prepared concrete
  • Excellent water resistance, no strength loss under water
  • High tensile strength allowing thin applications on de-coupled screed applications
  • Good weathering resistance

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Technical Data Sheet 

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