Self-Leveling Concrete Topping With Aggregate Surface - Ardex K 521™ 50 Lb

Rapid Concrete Resurfacing ARDEX K 521™ is a self-leveling, pourable topping designed for rapid resurfacing of indoor concrete. It can be applied at a minimum thickness of 3/8″ (9 mm) and up to a maximum thickness of 2″ (5 cm). ARDEX K 521 creates a polished, “aggregate-exposed” finish, with polishing possible as soon as 24 hours after application. Key Features A mixture of Portland cement, hydraulic cements, and specialty aggregates Ideal for resurfacing indoor concrete Can be walked on in 2 to 3 hours; polishing can begin in as little as 24 hours Dual water ratio for versatility Suitable for interior floors only Standards Tested in accordance with ASTM C1708