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
• Dual water ratio
• Use for interior floors only

Standards

Tested in accordance with ASTM C1708