How uniform can I expect the color of an organic coating to be?

If you have all the metal for a given job painted at the same time, in a single set-up, the coating should be uniform. However, most paint manufacturers expect their paints to vary a little from batch to batch, usually less than 2 delta E as measured by AATCC Test Method 173-1998. This can result in a barely noticeable difference in color between batches of paint. However, the differences can be larger with a translucent or metallic coatings. For more information about metallic coatings, please see

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