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USG Interiors produces a family of X-technology wet felted3 acoustical ceiling panels at its Cloquet, MN, facility having various light reflectance, noise reduction, and attenuation specifications with various levels of post-consumer/industrial recycled content. The X-technology wet felted production line at the Cloquet facility employs a wet-felted technology in the production of acoustical ceiling panels. X-technology wet felted acoustical ceiling panels contain mostly mineral wool, starch and latex. In smaller amounts, other raw materials used in the tile forming process include flocculants, biocides and defoamer. The finishing and packaging unit processes are dominated by the use of water-based paint, which contains the following ingredients: calcium carbonate, clay, latex, titanium dioxide (TiO2) and other chemicals. Shrink-wrap and corrugated strip are used as packing materials