Evaluation of “Spot and Sweep” Blasting as a Cost Effective ... - NSRP

4. Upon completion of standard zones or work areas, in accordance with current, standardcontractual requirements, the contractor shall inform the NAVSEA representative when they areready to apply the first coat of primer to the zone or work area. NAVSEA representative shallconduct all standard data reviews and inspections on bare metal areas in accordance withspecified Standard Item 009-32 requirements. Areas of retained paint shall be visually inspectedand shall satisfy the following:(a) There shall be no more than two colors of paint visible in any area of retained coating.Inspectors shall observe the red primer adjacent to any bare metal areas and then continueobservations into the bulk of the retained epoxy. Gray epoxy may be retained on top of thered primer, but any visual evidence of additional coats of red or black paint on top of the grayshall be cause for closer inspection. Closer inspection shall be conducted from a minimumdistance of 3 feet. Upon closer inspection, a solvent-wipe test with a white rag shall beconducted using the antifouling coating clean-up solvent. If the solvent wipe test showscolor transfer onto the rag, the area shall be rejected. Rejected areas shall be cleaned againuntil no color transfers to the rag.(b) There are no areas of sharp transition or steps between bare metal and paint. Any such areasshall be inspected and tested with a dull putty knife to determine adhesion. If the paint flakesor can be dislodged, the area shall be rejected and cleaned again to remove the loose paint.(c) *Under review Effort will be needed to smooth out the transition areas where partial blastedareas occur next to bare steel blasted areas. Sharp edges shall be removed in accordance withSSPC SP-3 and the areas feathered for a smooth transition.(d) Measurements of existing DFT shall be recorded for historical purposes in accordance withSSPC PA-2.