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Paint and Coatings Industry Standards
D4228 Standard Practice for Qualification of Coating Applicators for Application of Coatings to Steel Surfaces
This practice provides a qualifying method to verify the proficiency and ability of coating applicators to attain the required quality for application of specified coatings to steel surfaces given the proper tools and equipment. The coating applicator shall be provided with information on the specified coating material and with coating materials properly mixed and ready for application, necessary equipment for application of the specified coating, miscellaneous materials for cleaning the equipment, a practice area, all necessary safety equipment, and thickness gage. The coating applicator shall then be required to demonstrate his ability to apply the specified coating on a test panel using the proper technique and application equipment. The evaluation of the coating applicator shall be made by two qualifying agents, only one of which can be production related. Qualifying agents shall inspect the finished surface and shall verify that it conforms to the requirements specified.
