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Ardex X77 White Microtec Fiber Reinforced Tile and Stone Mortar 40 lb Bag

4.5 (1) Write Review
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$54.03

$ 27 .99 $27.99

In Stock

About this item

  • Advanced Technology: Ardex X77 MICROTEC for large tiles, featuring cutting-edge polymer-modified mortar.
  • Versatile Use: Perfect for high traffic, facades, heating systems, and swimming pools.
  • Extended Open Time: Remarkable 60-minute flexibility, double the ISO standard.
  • Reliable Performance: Superior sag resistance, doubling the ISO standard.
  • Cost-Effective Coverage: Each 40 lbs. bag covers 110 sq. ft. with a 1/4" sq. notch trowel.


ARDEX X 77 MICROTEC Fiber Reinforced Tile and Stone Mortar is a high-performance, microfiber-reinforced, polymer-modified mortar formulated especially for large format tile installations. Use to install porcelain, glass, quarry, ceramic and most natural stone tiles* over interior or exterior concrete and masonry floor and wall surfaces. Also use for interior applications over exterior-grade plywood. ARDEX X 77 is ideal for use in swimming pools and fountains and over in-floor heating systems and is recommended for all tile sizes, including mosaics. Formulated to provide excellent bond strength, sag resistance and flexibility, ARDEX X 77 is ideal for the installation of large format tiles (exterior and interior), as well as high traffic areas, wet areas and exterior building façades.


Jim N.
2025-03-18 10:11:57
Best product for large format tile!