National Gypsum. Need to specify tile on a circular column? PermaBase Flex makes it easy. The 1/2-inch cement board is made from polystyrene sandwiched between two layers of fiberglass matting. Available for interior and exterior applications, the board can be bent to 90 degrees at a 6-inch radius. www.nationalgypsum.com.
PermaBase Flex Cement Board
by National Gypsum
