Mapei's Ultraflex LFT Rapid-Set Thin Set is versatile enough to work with various tile types, including porcelain and natural stone. The mortars advanced formulation allows for ease of application, helping installers achieve a smooth and even surface. This makes it a preferred option for professionals seeking reliable results in high-traffic areas. This mortar has a high content of unique dry polymer, resulting in excellent adhesion to the substrate and tile. Thanks to MAPEIs High-Hydrated Cement Technology (HCT), Ultraflex LFT Rapid offers superior drying-out characteristics for quick curing and does not contribute to efflorescence. Ultraflex LFT Rapid is FastTrack Ready, allowing grouting in 3 to 4 hours.