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SKU 12438P
by Ardex
Original price $3,143.40 - Original price $3,143.40
Original price
$3,143.40 - $3,143.40
Current price $3,143.40

Freight delivery rules and guidelines

Achieve Faster, Easier Tile Prep with ARDEX Liquid Backerboard

ARDEX Liquid Backerboard self-levels in a single pour up to 1-1/4", replacing traditional backerboard installation over wood and concrete subfloors.

The seamless underlayment levels floors fast without lath reinforcement, allowing tile installation in as little as 6 hours.

Key Features:

  • Self-levels without lath reinforcement up to 1-1/4"
  • Walkable in 2-3 hours, tile in 6 hours
  • Replaces traditional backerboard installation
  • Smooth and level wood and concrete floors
  • Excellent 65 sq. ft. coverage at 1/8" thickness
  • Encapsulate in-floor heating systems

With faster installation and drying times, Liquid Backerboard boosts productivity for pros prepping subfloors for flawless tile and stone jobs.

Speed up project timelines with ARDEX Liquid Backerboard Self-Leveling Underlayment.


    • SystemOne
    • Tested in Accordance with ASTM C1708


    Mixing Ratio:

    6 quarts (5.7 L) of water per 50 lb. (22.7 kg) Bag


    32.5 sq. ft. per bag at 1/4” (3 sq. m at 6 mm)

    65 sq. ft. per bag at 1/8’’ (6 sq. m at 3 mm)

    *Coverage will vary depending on the texture of the surface being smoothed.


    • Flow Time: 10 minutes
    • Compressive Strength (ASTM C109/mod – Air cure only): 3,000 psi (210 kg/sq. cm) at 28 days
    • ASTM C627 Rating (Robinson-Type Floor Tester): Classified as extra heavy
    • Flexural Strength (ASTM C348): 700 psi (49 kg/sq. cm) at 28 days
    • Walkable: 2 – 3 hours
    • Install Flooring and Waterproofing: See Installation of Flooring and Waterproofing section in Technical Data
    • VOC: 0
    • Packaging: 50 lb. (22.7 kg) 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

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