ARDEX K 301™ Exterior Self-Leveling Concrete Topping is a self-leveling topping and underlayment for fast-track resurfacing and smoothing for exterior and interior applications over concrete and approved, properly prepared, non-porous surfaces, including terrazzo, epoxy coatings and ceramic and quarry tile – on, above or below grade.
Tested in accordance with ASTM C1708
Mixing Ratio: 5 quarts (4.73 L) of water per 50 lb. (22.7 kg) bag
Coverage: 23 sq. ft. per bag at 1/4” (2.1 sq. m at 6 mm)
12.5 sq. ft. per bag at 1/2” (1.1 sq. m at 12 mm)
Flow time: 10 minutes
Compressive strength (ASTM C109/mod – air cure only): 4,300 psi (301.0 kg/sq. cm.) at 28 days
Flexural strength (ASTM C348): 1,000 psi (70.0 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 – 72 hours
High build polymer coating (greater than 20 mils/0.5 mm): 7 days
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: 1 year, if unopened
Warranty: ARDEX L.P. Standard Limited Warranty applies.