Ardex - X 4 Large Format Tile & Stone Mortar, White 40 lb

Ardex's mortars in White — the mortar and setting base that keeps your installation solid for years.

ARDEX X 4™ is a polymer modified mortar for setting most types of tile including mosaics and natural stone over common interior surfaces including exterior grade plywood, as well as over exterior concrete and masonry surfaces. ARDEX X 4 mortar can be used to set porcelain tiles on horizontal exterior concrete or masonry surfaces. Ideal for large format tiles (LFT) and stones.