Description: Bostik® 1900™ Epoxy Modified Grout and Mortar Admixture, when mixed with Bostik® Ceramic Tile Grout (sanded only), is for interior and exterior installations to set and/or grout all ceramic, porcelain, quarry, granite, slate, marble, limestone, and dimension stone tiles. Exceeds ANSI A118.8.Information provided by Bostik |