UltraFlex 2

Mapei UltraFlex

Ultraflex 2 is a professional-grade, single-component, high-performance, polymer-modified thin-set mortar for interior and exterior installations of ceramic, porcelain and dimensional natural-stone tile. This mortar has a high content of unique dry polymer, resulting in excellent adhesion to the substrate and tile. Ultraflex 2 meets or exceeds ANSI A118.4 and ANSI A118.11 requirements when mixed with water. Ultraflex 2 can be used for interior and exterior installations of tile in most residential floor and wall applications. In commercial applications, use on interior floor and wall installations and exterior floors.




• Most interior/exterior residential installations on floors and walls • Most interior/exterior commercial installations on floors • Most interior commercial installations on walls • Installation of ceramic and porcelain tile, quarry tile, pavers, Saltillo tile, and many types of marble, granite and natural stone Suitable Substrates • Concrete (cured at least 28 days) • Masonry cement block, brick, cement mortar beds and leveling coats • Cement backer units (CBUs) – see manufacturer’s installation guidelines • Gypsum wallboard – interior walls in dry areas only (See Technical Bulletin 010313-TB for priming instructions) • APA and CANPLY Group 1 exterior-grade plywood (interior, residential and light commercial in dry conditions only) • Properly prepared vinyl composition tile (VCT) and cutback residue (interior only) • Properly prepared existing ceramic and porcelain tile, quarry tile and pavers (interior only) • MAPEI waterproofing, crack-isolation and soundreduction membranes