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Newman Center: Masonry Repair <br />SB Project No. 116-132 <br />2. Let the application dwell 15 to 60 minutes or until coating lifts or shows signs of dissolving. <br />Periodic agitation with a stiff bristle brush improves penetration. Some coatings will need <br />multiple applications or increased dwell time. <br />3. Working from the bottom to the top, remove stripper and residue with pressure water rinse. <br />The best combination of rinsing pressure and water volume is provided by washing <br />equipment generating 400 to 1000 psi with a water flow rate of 6 to 8 gallons per minute <br />delivered through a 15 to 45 degree fan spray tip. <br />3.6 FINAL CLEANING <br />A. Clean adjacent surfaces of any spillage and debris. Use detergent and soft brushes or cloth. <br />B. Remove debris from gutters, collection boxes, and downspouts. Rinse off roof and flush gutters <br />and downspouts with water. <br />C. Remove masking materials, leaving no residue. <br />END SECTION <br />cLEnNiNa <br />