VELOSIT SC 238 is a cementitious screed mix for 10 – 100 mm thick applications. It is mixed on site creating a rapid hardening overlayment. It is ready to receive flooring systems within 24 hours.
Properties
Minimal shrinkage/expansion under dry resp. wet curing conditions minimizing the risk of micro-cracking
Excellent workability
Ready for covering with ceramic tiles after 24 hours, for moisture sensitive floor coverings after approx. 72 hours (moisture <1,8% CM)
Approx. 24 MPa (3480 psi) compressive strength after 24 hours
Final strength of more than 50 MPa (7252 psi) after 28 days
Open to foot traffic after 14 hours
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
Good sulfate resistance
Light gray color close to concrete color
Typical Application Areas
Interior and exterior use
Bonded screeds
De-coupled screeds on insulation or membranes
Floor and screed repairs
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