Gold Bond® Brand Hi-Impact® XP® Gypsum Board with Sporgard™* consists of a tapered edge, mold and moisture resistant, fire-resistant, Type X gypsum core encased in a heavy, abrasion and mold/mildew/moisture resistant, 100% recycled, National Gypsum's original Purple® paper on the face side and a heavy, abrasion and mold/mildew/moisture resistant, 100% recycled, gray paper on the back side. A fiberglass mesh is embedded into the core, close to the back of the board to provide additional impact/penetration resistance. Hi-Impact XP Gypsum Board features a specially formulated core to provide fire resistance ratings when used in tested systems in addition to providing extra protection against mold and mildew compared to standard gypsum board products. Tapered edges allow joints to be reinforced with ProForm® Brand Joint Tape and concealed with ProForm® Brand Ready Mix or ProForm® Brand Quick Set Setting Compounds. For optimum mold and mildew performance, ProForm® Brand XP Ready Mix is recommended for use.