The final mechanical test was the Impact Resistance Test, ASTM D2794. In a perfect world, coatings would not suffer physical damage. In the real world, accidents happen, tools are dropped, doors get slammed, and other mishaps occur which can damage a coating. The Impact Resistance Test is a rapid deformation procedure that will defeat all but the best coatings. A ½ inch steel ball is dropped from a predetermined height (in this instance 24 inches) onto a steel panel with the test coating applied to the underneath side. All panels are the same steel type and the same thickness. After impact, the bulge on the coated side of the panel is examined for coating damage and separation from the steel underneath the coating. Original specimens of Rust Bullet® (panel number 2), Wasser® Brand System (panel number 6), and POR-15® System (panel number 8) were evaluated for chip resistance.