Gypsum board is National Gypsum's primary business, and these products are marketed under the Gold Bond® BRAND. The full product line includes XP® mold and moisture resistant, SoundBreak® XP® acoustical, and e²XP® exterior and interior extended exposure board. The company is a leader in product and process innovation. It is fully integrated, owning gypsum mines and quarries and paper mills to produce the heavy facing papers for gypsum board manufacturing.

National Gypsum offers a full line of wallboard finishing products marketed under the ProForm® BRAND. These include joint compounds, ready mix and tape.

The company's PermaBase® Cement Board features a reinforced edge, allowing easier handling and fastening. The product is used as an underlayment for tile in wall, floor, and countertop applications. It is also used as an exterior sheathing for tile, stucco, and masonry applications.