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.
Infrastructure: Checking the durability of powder coatings on outdoor railings, bridges, and signage. astm d2794 pdf
The results of the ASTM D2794 test are typically reported as the maximum height from which the indenter can be dropped without causing damage to the coating. The test can be performed with different types of indenters, and the results may vary depending on the indenter used. The ultimate goal is to determine the "impact-failure
In the world of coatings and paints, durability is king. A coating might look perfect straight out of the spray gun, but its true quality is revealed when it faces the rigors of the real world—flying gravel, dropped tools, or sudden impacts. The test can be performed with different types