For manufacturers and quality control labs, the standard for measuring this toughness is .
The ASTM D2794 test procedure involves applying a paint or coating to a metal substrate, followed by subjecting the coated panel to a controlled impact using a specified apparatus. The impact is generated by dropping a weighted indenter onto the coated surface from a predetermined height. The test is typically performed on a panel of a specific size, and the coating is applied according to a specified thickness. astm d2794 pdf
The test determines the "impact strength" of a coating by dropping a standard weight through a guide tube onto an indenter that deforms the coated specimen. For manufacturers and quality control labs, the standard