{"product_id":"ardex-x77-gray-microtec-fiber-reinforced-tile-stone-mortar-40-lb-bag-12537","title":"ARDEX X 77 MICROTEC Polymer-Modified Thinset Mortar – Fiber Reinforced Tile and Stone Adhesive for Porcelain, Ceramic, Natural Stone, Large Format Tile, Gray, 40 lbs Bag (12537)","description":"\u003cp\u003e\u003cstrong\u003eProduct Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-Performance Formulation: \u003c\/strong\u003eARDEX X 77 is engineered with advanced MICROTEC® technology, premium polymers, and microfiber reinforcement to deliver superior flexibility, tensile strength, and bonding performance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVersatile Installation Depth: \u003c\/strong\u003eSuitable 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.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutstanding Tile Compatibility: \u003c\/strong\u003eDesigned for setting porcelain tile, mosaic tile, ceramic tile, marble, granite, glass tile, quarry tile, and most types of natural stone on floors and walls.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIdeal for Challenging Environments: \u003c\/strong\u003ePerfect 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.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEfflorescence Resistance \u0026amp; Easy Workability: \u003c\/strong\u003eOffers a creamy, easy-to-apply consistency that resists efflorescence and ensures smooth troweling, extended open time, and excellent coverage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIn-Floor Heating System Compatible:\u003c\/strong\u003e Safely installs over radiant heated floors, ensuring long-lasting tile bonding and performance in bathrooms, kitchens, and living areas with underfloor heating.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShear and Sag Resistance:\u003c\/strong\u003e Excellent non-sag performance for vertical applications and high shear strength makes it ideal for large format tile installations on walls and floors.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMeets Industry Standards:\u003c\/strong\u003e Exceeds ANSI A118.4, A118.11, and A118.15 requirements, making it suitable for demanding tile and stone installation projects.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Description:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eARDEX 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.\u003c\/p\u003e\n\u003cp\u003eThis 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.\u003c\/p\u003e\n\u003cp\u003eARDEX 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.\u003c\/p\u003e\n\u003cdiv data-cel-widget=\"Desktop-Detailed-Evaluation-Zone\" data-csa-c-id=\"naaksm-opbsxv-nklemb-r0quvs\" data-csa-c-is-in-initial-active-row=\"false\" data-csa-c-asin=\"\" data-csa-c-slot-id=\"Desktop-Detailed-Evaluation-Zone\" data-csa-c-content-id=\"Desktop-Detailed-Evaluation-Zone\" data-csa-c-type=\"widget\" data-feature-name=\"Desktop-Detailed-Evaluation-Zone\" class=\"celwidget\" id=\"Desktop-Detailed-Evaluation-Zone\"\u003e\n\u003cdiv data-cel-widget=\"productDescription_feature_div\" data-csa-c-id=\"pbub8c-w3f9dx-ul07tb-39j0vg\" data-csa-c-is-in-initial-active-row=\"false\" data-csa-c-asin=\"\" data-csa-c-slot-id=\"productDescription_feature_div\" data-csa-c-content-id=\"productDescription-3\" data-csa-c-type=\"widget\" data-feature-name=\"productDescription-3\" class=\"celwidget pd_rd_w-renFz pd_rd_r-90BQFCQH1A9GJDCBKMC9 pd_rd_wg-xJPzy\" id=\"productDescription_feature_div\"\u003e\n\u003cdiv\u003e\n\u003cdiv data-cel-widget=\"productDescription_feature_div\" class=\"a-row feature\" id=\"productDescription_feature_div\" data-template-name=\"productDescription\" data-feature-name=\"productDescription\"\u003e\n\u003cdiv class=\"a-section a-spacing-small\" id=\"productDescription\"\u003e\n\u003cp\u003e\u003cspan\u003eARDEX 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.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv data-cel-widget=\"productDocuments_feature_div\" data-csa-c-id=\"46vl7u-y8wqny-cal12o-vaapn3\" data-csa-c-is-in-initial-active-row=\"false\" data-csa-c-asin=\"\" data-csa-c-slot-id=\"productDocuments_feature_div\" data-csa-c-content-id=\"productDocuments\" data-csa-c-type=\"widget\" data-feature-name=\"productDocuments\" class=\"celwidget pd_rd_w-k9mgL pd_rd_r-90BQFCQH1A9GJDCBKMC9 pd_rd_wg-xJPzy\" id=\"productDocuments_feature_div\"\u003e\u003c\/div\u003e\n\u003cdiv data-cel-widget=\"climatePledgeFriendlyBTF_feature_div\" data-csa-c-id=\"xujkgc-jcdfty-i32pl2-v07297\" 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