Abstract: A joint compound or wall repair composition and the method of making the same is disclosed that reduces the amount of airborne dust emitted during traditional sanding processes. Generally, such a reduction can be achieved by combining a first binder that has a high glass transition temperature and a second binder that has a low glass transition temperature with conventional joint compound compositions.

Abstract: An impact resistant gypsum wallboard and method of making the same are disclosed that utilizes a woven scrim to improve upon the warping of the wallboard and to allow for a stronger bond to form between the facing material and gypsum core of the wallboard.

Abstract: A process and system for manufacturing gypsum wallboard that aerates and cools a portion of the stucco used in the manufacturing process. This conditioning of the stucco reduces the amount of water needed to manufacture the gypsum wallboard which in turn reduces the amount of energy and cost needed to manufacture the wallboard.

Abstract: An apparatus and method for applying reference or grid markings to wallboard during the manufacturing process is disclosed. Reference or grid markings are applied to one sheet of cover paper at a location between the originating cover paper rolls and the cover paper creaser or creasers. This is accomplished by locating and aligning multiple print heads across the width of the continuously passing cover paper, such that markings are ejected onto the cover paper in a specific and coordinated fashion. In addition to using any suitable commercially-available computer equipment to coordinate printer head activity, this function is accomplished by attaching each print head to a common horizontal support element and provide individual adjustments that are perpendicular to, and with the directional flow of the passing cover paper.