ARDEX K 521™ is a pourable, polishable, self-leveling topping for fast-track resurfacing of indoor concrete. ARDEX K 521 can be installed from a minimum thickness of 3/8″ (9 mm) up to a maximum thickness of 2″ (5 cm). Use ARDEX K 521 to provide a polished, “aggregate-exposed” surface. Polishing can proceed in as little as 24 hours.
Key Features
- A blend of Portland cement, hydraulic cements and specialty aggregate
- Resurface indoor concrete
- Walk on in 2 – 3 hours, polish in as little as 24 hours
- Dual water ratio
- Use for interior floors only
Standards
Tested in accordance with ASTM C1708