If your coating is failing ASTM D2794, check these variables:

In the world of industrial coatings, protective finishes, and automotive paints, durability is paramount. A coating might look perfect when applied, but how does it hold up against a sudden impact—a flying pebble, a dropped tool, or an accidental bump? astm d2794 pdf

There is no universal "pass/fail" value in ASTM D2794. The standard only tells you how to test, not what the result should be. The acceptable value is negotiated between the (coating manufacturer) and the customer (the factory using it). If your coating is failing ASTM D2794, check