TEC has also introduced 1Flex, a crack isolation mortar. It is a one step application and has 1/8-inch crack isolation. 1Flex can be installed in one day, and can be used for granite, slate, natural stone, non-green marble, quarry tile, semi- and vitreous tile, porcelain, concrete, mortar beds, brick and masonry, APA grade plywood, and cementitious backer units. It is available in both basic gray and a non-staining white formula.