MAPEI® Ultraflex™ 2 is a professional-grade thin-set mortar that is polymer-enriched for high performance and deformability. Great for interior and exterior installations of ceramic, porcelain and dimensional natural stone tile. This single-component high-performance polymer-modified thin-set delivers excellent adhesion to the substrate and tile. Its smooth, creamy consistency makes this thin-set mortar easy to apply. Ultraflex™ 2 can be used in most interior/exterior residential tile wall or floor applications. It can also be used in most interior/exterior commercial floor applications and interior commercial wall applications. Professional-grade polymer enriched mortar for high performance and deformability Easy application - smooth and creamy consistency Ideal for installation of ceramic tile, porcelain tile, quarry tile, pavers, Saltillo tile, and most types of marble, granite and natural stone Exceeds ANSI A118.4 and ANSI A118.11 bond strength requirements Gray available in 50 lb. bags White available in 50 lb. bags