Mapei - Ultraflex 1 Polymer-modified mortar, Gray - 50 lb

Ultraflex 1 is a thin-set, single-component, polymer-modified thinset mortar used for the installation, indoors or outdoors, of various shaped stones and ceramic, porcelain and quarry tiles. Features an above-average content of proprietary formula dry polymers, resulting in good adhesion strength. Ultraflex 1 can also be used, indoors or outdoors, for laying tiles on floors and walls, in most residential applications. For commercial use, used on the floor and walls indoors, and on the floor outdoors. For exterior walls in a commercial context, the Kerabond/Keralastic™ or Granirapid® systems are recommended. Mixed with water, Ultraflex 1 meets or exceeds the requirements of ANSI A118.4 and ANSI A118.11.

• Enriched with polymers to provide good performance
• Good bond strength to plywood