What is a dry-set mortar?
Dry-set mortar is typically a factory blended mix of cement, sand and other chemicals for the installation of dry ceramic tile or dimensional stone. The dry-set mortar is mixed with water or latex, applied to the substrate with a notched trowel and the tile or dimensional stone is immediately imbedded into the wet dry-set mortar. The contractor today, uses the word thin-set, to describe a dry-set mortar used for the installation of ceramic tile or dimensional stone. See ANSI A108.5 Installation of Ceramic Tile with Dry-Set Portland Cement Mortar or Latex-Portland Cement Mortar.