Marking Application
Airfield markings are typically applied by a pavement marking contractor who will likely have experience in both airfields and roadways. Typically, markings are located by a separate surveying contractor with the marking contractor often doing just the painting.
Temperature Guidance
Low temperatures may inhibit adhesion to the HMA, while high temperatures may inhibit curing. Therefore, P-620 allows marking application only when the HMA surface is at least 45°F and rising and surface temperature is at least 5°F above the dew point. Marking application should also stop if HMA surface temperature exceeds 120°F.
Other Application Guidance
- Airfield markings are generally applied more precisely than roadway markings. The FAA does not allow deviation from a straight line by more than ½ inch in 50 ft.
- If applying to porous friction course, use a 75% application rate in two directions. This helps paint multiple sides of exposed aggregate and allows paint to penetrate the large surface voids.
- Empty containers for paint and glass beads should be saved in order to verify amount of material and application rate.
