Southland Flooring Supplies recently added Southland 2170 Multi Purpose Ceramic Tile Mastic to their product line. The new ceramic tile mastic is nonflammable, nonstaining and, according to Southland, easy to clean up. Southland 2170 is designed for interior tile installations on concrete, plaster, gypsum wallboard, exterior grade plywood, and cementitious backer board. The mastic is available in 3.5- and 1-gallon pails