VELOSIT® SL 503
High Strength Self Leveling Overlayment
VELOSIT SL 503 is a cementitious self leveling overlayment for concrete floors. It creates an abrasion resistant smooth surface.
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 (1/8”) to 38 mm (1 ½“)
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 foot traffic after 3 hours, for forklift traffic after 16 hours.
- 30 – 40 min. working time and 20 MPa (2900 psi) compressive strength after 4 hours
- Final strength of more than 60 MPa (8700 psi) after 28 days
- Excellent adhesion to properly prepared concrete
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