ARDEX K 520™ Self-Leveling Concrete Toping

Installation

Mixing Ratio: 5 quarts (4.73 L) of water per 50 lb. (22.7 kg) bag
Coverage: 25 sq. ft. per bag at 1/4” (2.4 sq. m at 6 mm)
16.7 sq. ft. per bag at 3/8″ (1.6 sq. m at 9.5 mm)
12.5 sq. ft. per bag at 1/2” (1.2 sq. m at 12 mm)

Performance

Flow time: 10 minutes
Compressive strength (ASTM C109/mod – air cure only): 6,000 psi (420 kg/sq. cm.) at 28 days
Flexural strength (ASTM C348): 1,200 psi (84 kg/sq. cm.) at 28 days
Walkable: 2 – 3 hours
Min. Cure Time prior to coating: Waterborne: 24 hours
Solvent-borne and 100% solids (less than 20 mils/0.5 mm): 48 hours
High build polymer coating (greater than 20 mils/0.5 mm): 7 days
VOC: 0
Packaging: 50 lb. (22.7 kg) net weight bag
Storage: Store in a cool, dry area. Do not leave bags exposed to sun.
Shelf life: Nine months, if unopened
Warranty: ARDEX L.P. Standard Limited Warranty applies.

For complete product technical information, click on the Downloads tab and open the Technical Data download.