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.
- A blend of Portland cement, hydraulic cements and specialty
- Resurface indoor concrete
- Walk on in 2 - 3 hours, polish in as little as 24 hours
- Use for interior floors only