Microtec Fiber Reinforced Tile and Stone Mortar


Ideal for large format porcelain tile installation in the most demanding environments.


A smooth, creamy and easy to trowel polymer-modified mortar formulated with MICROTEC Technology with outstanding strength, flexibility and sag resistance. ARDEX X 77 is the perfect solution for the most difficult installations in any environment including large format thin tile installations. The world's most advanced tiling mortar!


  • Extended open time; up to 60 minutes - double the ISO standard

  • Unmatched sag resistance

  • Ideal for high traffic areas and exterior facades

  • Pot Life: 3 hours

  • Outstanding coverage: 110 sq. ft.

X 77

  • 110 sq. ft

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Corporate Office


13735 Lakefront Drive

Earth City, MO 63045



For samples inquires contact us at samples@ejwelch.com

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