ARDEX X 3™ Tile and Stone Mortar is a Portland cement-based, polymer-modified mortar with good bond strength and sag resistance and a 3-hour pot life. ARDEX X 3 mixes to a creamy, easy to apply thin set mortar that is water and weather resistant. ARDEX X 3 can be used to install quarry, ceramic and most natural stone* tiles on many common interior or exterior surfaces and also can be used for setting porcelain tile over interior, absorbent concrete and other cementitious surfaces. ARDEX X 3 is recommended for the installation of most tile sizes**, including mosaics, and is suitable for use over concrete floors with in-floor heating systems.

Key Features

  • Good sag resistance
  • 3-hour pot life
  • Water and frost resistant
  • Use for setting quary, ceramic and most natural stone tiles*
  • Use for setting porcelain tile on interior, absorbent concrete/cementitious surfaces
  • Easy to mix and apply
  • Coverage is up to 80 sq. ft. (7.4 sq. m) per bag with 1/4″ Square Notch trowel


Meets or exceeds ANSI 118.4
ISO Classification: C1T

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