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..., . ,.., . spilled material. Ensure the material is agitated as required by the manufacturer's technical data requirements during application to maintain uniform suspension of solids. ,.., . ,..., 560-11 Application of Coatings. 560-11.1 General: Train all coating personnel on the proper mixing and application of the coatings, Specification requirements, material application characteristics, and inspection criteria. Only personnel receiving this training may mix or apply coatings. Use thinners and cleaners according to coating Manufacturer's technical data requirements. Coating that lifts or curls after application must be removed and the area cleaned and recoated, at no additional cost to the Department. Apply a prime coating of a color that will be a definite contrast between the coating and the dull gray appearance of the blasted steel surface immediately following the cleaning and preparation of the surface and apply succeeding coats before contamination of the previous coats occurs. When this is not possible or is impractical, inspect the surface for any damage from contaminates, weather, or other exposure and repair as necessary before application of the next coat. Select intermediate and finish coat colors so that there is a definite contrast between the coatings. Stripe coats may be tinted as necessary to assure proper coverage and facilitate inspection. Apply the finish coating meeting Federal Standard, No. 595B, Table VIII, Shade No. 36622, color designation, unless otherwise identified in the Contract Documents. Ensure that primer for faying (contact) surfaces of high strength bolted connections (for slip-critical, frictional transfer of load) meets the Research Council on Structural Connections (RCSC) requirements for a Class B rating, based on certified tests by the coating manufacturer or applicator. 560-11.2 Weather and Temperature Limitations for Field and Maintenance Coating: Ensure the ambient weather conditions at the actual location of the work during surface preparation and coating application operations are in accordance with coating system manufacturer's recommendations. Do not spray coating when the measured wind speed in the immediate coating area is above 15 miles per hour [25 kilometers per hour]. Ensure the ambient air temperature, relative humidity, and dew point and the surface temperature of the steel to be coated are within limits recommended by the coating manufacturer. Do not apply coatings when contamination from rainfall is imminent or when the temperature or humidity is outside limits recommended by the coating manufacturer. 560-11.3 Application Methods: Apply coatings per manufacturer's technical data requirements. Application with brushes may be permitted for minor touchup of spray applications and stripe coats in accordance with manufacturer recommendations. Adjust spray equipment to produce an even, wet coat with minimum overspray. Apply coatings in even, parallel passes, overlapping 50 percent unless otherwise recommended per manufacturer's technical data requirements. 560-11.4 Striping of Irregular Surfaces: Ensure complete coverage and proper thickness on welds, corners, crevices, sharp edges, bolts, nuts, and rivets. 560-11.5 Faying Surfaces: Prior to bolting; verify that the coating on the faying surfaces is properly cured in accordance with ASTM D 4752 or the manufacturer's requirements. Verify that the dry film thicknesses (DFT) and the temperature-adjusted cure time for slip critical bolted faying surfaces are within the range validated by the coating manufacturer. .., . " . ..., . ., . ,., . ., . " . r-, . I""l . I 1 . r'1 . . ..., . ,.., . ,.., . 1'""1 09/09 01000-132 03-4122.F -