VELOSIT SC 253 is a binder for the production of cementitious self leveling mortars for concrete floors. It creates an abrasion resistant smooth surface. The mortar may also be used as a high strength underlayment for coatings and floor coverings.
Properties
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
Ready for tiles after 4 hours, for moisture sensitive flooring materials after 16 hours
30 – 40 min. working time and 20 MPa (2,900 psi) compressive strength after 4 hours
Final strength of more than 50 to 70 MPa (7,250 - 10,150 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
Light gray color close to concrete color
Typical Application Areas
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 50 mm (2“)
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