Astm D2794 Pdf ((new)) (2026)

The ultimate goal is to determine the "impact-failure point," which is the inch-pounds (or Newton-meters) of force required to cause the coating to crack or delaminate from the substrate.

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The test begins at a height where no failure is expected. The drop height is increased incrementally—usually by 1 inch at a time—until visible cracks appear in the coating. The ultimate goal is to determine the "impact-failure

In simpler terms, it measures how well a paint or coating adheres to a substrate when hit by a falling weight. It is a "destructive test" designed to simulate the sudden shock a coated surface might endure during its service life. astm d2794 pdf