VELOSIT® SL 503
High Strength Self Leveling Overlayment
Product Description
VELOSIT® SL 503 is a cementitious self leveling overlayment for concrete floors. It creates an abrasion resistant smooth surface.
VELOSIT® SL 503 is a shrinkage compensated self leveling overlayment based on a special cement with very quick strength development. VELOSIT® SL 503 binds the mixing water very fast allowing a very short wait time before it becomes trafficable or can be covered. VELOSIT® SL 503 creates a well bonded and very smooth layer on the substrate.
VELOSIT® SL 503 is the result of many years in the field testing and research. VELOSIT® SL 503 is a cementitious self leveling overlayment for concrete floors.
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 to 38 mm
Features
- Ready for covering with ceramic tiles after 4 hours, for moisture sensitive floor coverings after 16 hours
- Ready for foot traffic after 3 hours, for forklift traffic after 16 hours
- Resistant to freeze/thaw cycles
- Excellent flow with long slump life
- Final strength of more than 60 MPa after 28 days
- 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
- Smooth surface profile
- Very good adhesion to properly prepared concrete
- Fast air release with minimal requirement for agitation
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