| Engineered for use both under and over all DITRA and KERDI products | Sag-resistant, smooth and creamy | Easy to handle and spread | Suitable for use with ceramic, porcelain, and stone tile, including large and heavy tile | To be used in conjunction with Schluter®-Systems’ uncoupling and waterproofing membranes (DITRA, DITRA-HEAT, and KERDI), the Schluter®-Shower System, and KERDI-BOARD | Meets ANSI A118.4T, ANSI A118.11, and ANSI A118.15T | Available in gray and white