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<br />Copyright 2005 AIA <br /> <br />MASTERSPEC Short Form <br /> <br />08/05 <br /> <br />4. Rinse with [cold] [hot] water applied by [low] [medium]-pressure spray to remove mold, <br />mildew, and algae: remover and soil. <br />5. Repeat cleaning procedure above where required to produce cleaning effect established <br />by mockup. <br /> <br />C. Nonacidic Gel Chemical Cleaning: <br /> <br />1. Wet stone with [c1()ld] [hot] water applied by low-pressure spray. <br />2. Apply nonacidic gel cleaner in 1/8-inch (3-mm) thickness by brush, working into joints <br />and crevices. Apply quickly and do not brush out excessively so area will be uniformly <br />covered with fresh cleaner and dwell time will be uniform throughout area being cleaned. <br />3. Let cleaner remain on surface for period indicated below: <br /> <br />a. As recommended by chemical-cleaner manufacturer. <br />b. As established by mockup. <br /> <br />4. Remove bulk of nonacidic gel cleaner by squeegeeing into containers for disposal. <br />5. Rinse with [cold] [hot] water applied by [low] [medium]-pressure spray to remove <br />chemicals and soil. <br />6. Repeat cleaning procedure above where required to produce cleaning effect established <br />by mockup. Do not repeat more than once. <br /> <br />D. Nonacidic Liquid Chemical Cleaning: <br /> <br />1. Wet stone with [cold] [hot] water applied by low-pressure spray. <br />2. Apply cleaner to stoner in two applications] by brush[ or low-pressure spray]. Let <br />cleaner remain on surface for period indicated below: <br /> <br />a. As recommended by chemical-cleaner manufacturer. <br />b. As established by mockup. <br /> <br />3. Rinse with [cold] [hot] water applied by [low] [medium]-pressure spray to remove <br />chemicals and soil. <br />4. Repeat cleaning procedure above where required to produce cleaning effect established <br />by mockup. Do not repeat more than once. <br /> <br />E. [Mild Acidic] [Acidic] Chemical Cleaning: <br /> <br />1. Wet stone with cold water applied by low-pressure spray. <br />2. Apply cleaner to stoner in two applications] by brush[ or tow-pressure spray]. Let <br />cleaner remain on surface for period indicated below: <br /> <br />a. As recommended by chemical-cleaner manufacturer. <br />b. As established by mockup. <br /> <br />3. Rinse with cold water applied by [low] [medium]-pressure spray to remove chemicals <br />and soil. <br />4. Repeat cleaning procedure above where required to produce cleaning effect established <br />by mockup. Do not repeat more than once. <br /> <br />F. One-Part Limestone Chl~mical Cleaning: <br /> <br />STONE RESTORATION AND CLEANING <br /> <br />04902 - 14 <br />