Abstract: An interior surface panel such as a ceiling tile is free of PVC materials and otherwise possesses desirable properties that make it suitable for installation in a variety of environments including schools, household and commercial kitchens and healthcare facilities. The panel can include a base mat and a facing material of a polyolefin or polyester polymer or copolymer bonded to the base mat. The facing material is resistant to ultraviolet light and possesses superior scrubbability. The PVC-free facing has a preferred thickness, opacity and surface roughness and a texture pattern that is non-directional and discontinuous. In an embodiment in which the PVC-free facing is white, it has a preferred light reflectance. The PVC-free facing is resistant to deformation under tension. In addition, the facing has low anisotropy; that is, the facing exhibits minimal differences in its physical properties in different directions. The facing also has good dimensional stability.

Abstract: An acoustical building panel and method of manufacturing it are disclosed. Embodiments of the panel include a porous nonwoven scrim, a coating deposited on the scrim, a base mat, and an adhesive deposited on either the base mat or the scrim in a discrete form such as in droplets. Embodiments of the method of manufacture include steps of perforating the base mat, applying the adhesive to the base mat in the discrete form, laminating the scrim onto the base mat, and applying the coating to the scrim surface.

Abstract: An acoustical building panel and method of manufacturing it are disclosed. Embodiments of the panel include a porous nonwoven scrim, a coating deposited on the scrim, a base mat, and an adhesive deposited on either the base mat or the scrim in a discrete form such as in droplets. Embodiments of the method of manufacture include steps of perforating the base mat, applying the adhesive to the base mat in the discrete form, laminating the scrim onto the base mat, and applying the coating to the scrim surface.