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Substrate Preparation

ARDEX Liquid BackerBoard Self-Leveling Underlayment

A Portland cement-based, polymer-modified, self-leveling underlayment that replaces traditional backer board, providing a flatter, smoother surface faster and easier for installing tile and stone. ARDEX Liquid Backerboard can be used over interior wood or concrete subfloors. It eliminates cutting, fitting, gluing, taping, fastening and the many other steps required with bulky, hard to transport traditional backer board.

The optimal tiling surface!

  • No lath mesh or additives required

  • Walk on: 3 hours, Tile installation: just 6 hours

  • Installation thickness: up to 1 1/4” (32 mm)

  • Use over in-floor heating

  • Compressive Strength: 3000 psi (210 kg/cm2) at 28 days

  • 50 lb. (22.7 kg.) bag, gray

  • Coverage: 65 sq.ft. per bag at 1/8” (6 m2 at 3 mm)

ARDEX AM 100TM Rapid-Set,

Pre-Tile Smoothing and Ramping Mortar

A unique repair and smoothing compound for concrete and masonry surfaces that significantly reduces prep time for the installation of tile. It can also be used to slope balconies and drains. It is water and frost resistant making it ideal for use in wet areas such as swimming pools, fountains and below grade installations. Can be used as a brown coat for manufactured/natural veneer stone installations.
Portland cement-based self-leveling underlayment with specialty polymers designed specifically for fast floor leveling prior to installing tile. ARDEX TL 1000 is used to smooth new or existing concrete, terrazzo and ceramic tile substrates.
  • Walk on: 3 hours

  • Tile installation: 6-8 hours (other floor coverings 1-3 days)

  • Installation thickness: up to 1 1/4” (32 mm)

  • Compressive Strength: 4000 psi at 28 days

  • 50 lb. (22.7 kg.) bag, gray

  • Coverage: 25 sq. ft. (6.97 m² per bag at 1/4”)

  • Install tile in just 2 hours

  • No sag or slump

  • 1/4” (6 mm) to 1 1/4” (32 mm) in just one lift

  • Interior or exterior use

  • 40 lb. (18.14 kg.) bag

  • Coverage: 22.5 sq. ft. per bag at 1/4’’ (2 m2 at 6 mm)


Self-Leveling Underlayment

ARDEX TL WOOD Self-Leveling Underlayment for Wood and Distressed Gypsum Subfloors

A self-leveling underlayment used for smoothing and leveling wood subfloors and for repairing and finishing distressed gypsum substrates above grade
  • Use over plywood, OSB, and strip wood flooring as well as existing gypsum substrates prior to the installation of tile or stone

  • Install tile in 48 hours, other floor coverings in 2-3 days

  • No metal lath required

  • Install from 1/4” (6 mm) to virtually any thickness; can be tapered to 1/16” (1.5 mm)

  • Use for interior, above grade floors only

  • Suitable for use with in-floor hydronic and electric radiant heating systems

  • Coverage – 22 sq. ft. per bag at 1/4” (2.04 m2 at 6 mm)

ARDEX SKM Skimcoat Patch & Finishing Underlayment

A trowelable patch and skim coat underlayment that provides a permanent, smooth, durable finish prior to the installation of most floor coverings.
  • Creamy, smooth, easy to apply

  • Trowels to a smooth, hard surface

  • Non-sanded, install from a true featheredge up to 1/2” (12 mm)

  • Walk on and install floor covering in as little as 30 minutes


ARDEX A 38 Rapid Set, Pre-Mixed Screed   

A pre-mixed, polymer-modified cement screed that is rapid setting, rapid hardening and rapid drying. Use for interior or exterior applications including swimming pools and other wet areas. After only one day the compressive strength and tensile strength of ARDEX A 38 exceeds the hardness regular cement screeds achieve after 28 days. ARDEX A 38 can be used to produce a bonded screed, an un-bonded floor screed laid onto

a membrane, or a floating floor screed laid onto a compressive insulating material.

  • Rapid setting, hardening and drying

  • Bonded, unbonded or floating

  • Walk on: 3 hours, Install tile 4 hours

  • Can be used with in-floor heating systems

  • Working time: Approx. 60 minutes

  • 40 lb. (18 kg.) bags (premixed with sand/aggregate)

  • 50 lb. (22.7 kg.) bags (cement binder only, no sand)

ARDEX EB 2 Fast Setting Screed Cement

Polymer-modified Portland cement-based hydraulic cement for producing bonded, unbonded or floating screed beds for use with tile and all other types of flooring. Ideal for high-traffic areas.

  • Working time: Up to 60 minutes

  • Walk on: Approx. 3 hours

  • Tile installation: 3 hours

  • Other floor coverings: after plastic sheet test (24 hours)

  • Packaging: 50 lb. (22.7 kg.) bag

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