Durability Characteristics of Traffic Paints

At the annual Purdue Road School last year, a discussion of traffic paints was presented that included some general considerations, traffic-paint formulation, and traffic-paint re­ search.* Both the selection and the application of traffic paints were discussed. The research program on traffic paints of the Joint Highway Research Project was well under way at that time. The scope, purpose, and approach of the study were out­ lined, but no definite results were then available. This discussion is a brief of one entitled, “Field and Labora­ tory Investigation of Traffic Paints,” in which the progress that had been made on this research program was presented at the twenty-first annual meeting of the Highway Research Board, December 2-5, 1941, at Baltimore, Maryland. For details of the methods of test, both field and laboratory, as well as the test results for each individual paint, the reader is referred to this more complete article.