Product Description

Rapid-Setting, “All-in-One” Grout Replacement for Sanded and Unsanded Grouts. 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.