ARDEX X 77 MICROTEC Polymer-Modified Thinset Mortar – Fiber Reinforced Tile and Stone Adhesive for Porcelain, Ceramic, Natural Stone, Large Format Tile, White, 40 lbs Bag (16013)

Product Features:

• High-performance formulation: ARDEX X 77 is engineered with advanced MICROTEC® technology, premium polymers, and microfiber reinforcement to deliver superior flexibility, tensile strength, and bonding performance.
• Versatile installation depth: Suitable for thin to medium bed applications, with an installation thickness of up to 5/8" (15 mm), ensuring optimal coverage and tile adhesion across a range of surfaces.
• Outstanding tile compatibility: Designed for setting porcelain tile, mosaic tile, ceramic tile, marble, granite, glass tile, quarry tile, and most types of natural stone on floors and walls.
• Ideal for challenging environments: Perfect for both interior and exterior applications, including high-traffic commercial areas, concrete balconies, patios, terraces, facades, and submerged installations such as swimming pools and fountains.
• Efflorescence resistance & easy workability: Offers a creamy, easy-to-apply consistency that resists efflorescence and ensures smooth troweling, extended open time, and excellent coverage.
• In-floor heating system compatible: Safely installs over radiant heated floors, ensuring long-lasting tile bonding and performance in bathrooms, kitchens, and living areas with underfloor heating.
• Shear and sag resistance: Excellent non-sag performance for vertical applications and high shear strength makes it ideal for large format tile installations on walls and floors.
• Meets industry standards: Exceeds ANSI A118.4, A118.11, and A118.15 requirements, making it suitable for demanding tile and stone installation projects.

Product Description:

ARDEX X 77 MICROTEC® Fiber Reinforced Tile and Stone Mortar is a premium-grade, polymer-modified thinset mortar specifically developed for installing large format tile, porcelain tile, and natural stone in both residential and commercial environments. Manufactured with proprietary MICROTEC® formulation and high-strength microfibers, it offers outstanding bond strength, sag resistance, and flexibility, making it ideal for high-performance tile installations over a variety of substrates.

This advanced thinset mortar is suited for use on concrete, masonry, and exterior-grade plywood substrates, both indoors and outdoors. ARDEX X 77 is engineered for demanding applications including walls, floors, exterior facades, concrete balconies, patios, and submerged areas such as fountains and swimming pools. It ensures long-term durability and resistance to efflorescence, providing professional contractors and tile installers with a highly workable, easy-to-trowel mortar that achieves superior coverage and handling.

ARDEX X 77 is approved for use over in-floor heating systems and offers exceptional results with difficult materials like glass tile and dense porcelain. With installation versatility from thin to medium bed depths, it supports all tile sizes, from delicate mosaic tiles to large heavy-format tiles, delivering professional results with excellent shear and tensile bond strength. Whether you're working on a wet area, high-load zone, or exposed outdoor surface, ARDEX X 77 delivers premium performance and lasting results for modern tile and stone installations.