Mapei Ultraflex 1 Single-Component, Polymer-Modified, Thin-Set Mortar, Gray, 50lbs Bag, for Indoor and Outdoor Installation of Large-Format Tile and Heavy Stone on Walls and Floors, Easy Application

• 50 pound (22.7 kg) mortar bag, gray mortar color best for use with light and translucent tile colors. Suitable for installing ceramic or porcelain tile on masonry cement block, brick, cement mortar beds and leveling coats
• Polymer-enriched for high performance, high adhesion and high deformability. Easy Glide Technology with a smooth and creamy consistency that makes the troweling process pleasant, fast and easy 
•  Works well with ceramic tile, porcelain tile, cultured stone tile, quarry tile, pavers, Saltillo tile, most types of marble, granite and natural stone
• Suitable for installing ceramic or porcelain tile  (bathroom tile, pool tiles, fountains, water features, hot tub surround, shower, steam room environments)
• Meets or exceeds Industry Standards: ISO 13007: Classification C2E, exceeds ANSI A118.4 and ANSI A118.11 bond strength requirements

Mapei Ultraflex 1 is a premium tile thinset mortar (dry-set), specifically formulated to meet the demands of wall and floor tile installation in both indoor and outdoor spaces. Part of the Ultraflex 1 high-performance mortar system, it is designed to provide easy installation and exceptional non-sag characteristics allow for the reliable installation of large format tiles on walls. Suitable for a variety of floor tiles and surface substrates, making it this mortar mix your ideal choice for many professional and amateur home improvement projects.
Ultraflex 1 offers excellent bonding strength, ensuring secure and durable tile installations. Features a polymer-enriched composition. Whether you're putting up subway tiles for your kitchen decor (home decor) or enhancing your bathroom decor with a pleasing tile mosaic, this tile thinset adhesive provides a reliable tile adhesive bond. Its clean gray finish compliments all manner of tile work designs using stone tiles, ceramic tiles, mosaic tiles, porcelain tiles, marble tiles, glass tiles, natural stone tiles, and carpet tiles.
Mapei Ultraflex 1 is suitable for both interior and exterior work, providing reliable adhesion to many materials such as ceramic tile, quarry tile, pavers, Saltillo tile, clinker tile, brick tile and natural stone. Its durability makes it an ideal choice for installation on many surfaces including cured concrete (at least 28 days old), masonry, cement blocks, brick, mortar bed, levelling coat, sheet rock, autoclaved aerated concrete, gypsum fiberboard, poured mastic asphalt, heated screed, foam backer board, and over waterproofing membrane.
Ultraflex 1 is the go-to solution for professional tile installations thanks to its superior performance, easy application, and load-bearing capability. It is the top choice of contractors and DIY tile installers seeking exceptional results due to its excellent workability and broad compatibility with many substrate and surface types.