Specifications include, but are not limited to: Durable pavement markings, for the purpose of the special provision, include epoxy and polyurea. Water base paint will not be considered a durable marking product. This work will consist of surface preparation for pavement markings and furnishing and applying durable pavement markings in accordance with the plans, this provision, and as directed by the Engineer. d. Weather Resistance: Apply the mixed epoxy, both white and yellow, at 15 mils 1 mil thick to 3 inch x 6 inch aluminum panels. Do not apply beads to the epoxy sample. Expose the cured sample in an Environmental Test Chamber meeting the requirements of ASTM G154. Conduct the test for 80 hours at 122F, alternating four-hour cycles of condensation and ultraviolet light. At the end of the exposure period, the material will show no substantial change in color or gloss. e. Abrasion Resistance: When the abrasion resistance of the material is tested in accordance with ASTM D4060 with a CS-17 wheel under a load of 1000 grams for 1000 cycles, the wear index will be no greater than 82 (The wear index is the weight in milligrams that is abraded from the sample under the test conditions).
