Painted steel drums were tested at Kure Beach, North Carolina, and a comparison made of four paints (both for one and two coats) in two colors, on four different steel pretreatments. A method of evaluating the condition of paint is described, and its use illustrated by the tests on the painted steel drums. Statistical analysis of the observed data provides satisfactory assurance of correct interpretation of the results. Film thickness is most important in obtaining durability. Specification TT-E-485 paint was confirmed as being suitable as a drum enamel. 5.4.5