INITIAL FIELD TESTING OF AIRFIELD MARKING PAINTS.
Rept. for Sep 63-Feb 65,
NAVAL CIVIL ENGINEERING LAB PORT HUENEME CALIF
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Technical Report R-296 described the application of test stripes to an operational asphalt runway and reported their condition at the time of three inspections made within 64 days. This supplement presents further data on their condition at four additional periods of time up to a total of 568 days. A vinyl toluene-butadiene paint showed the least deterioration of the five paints tested and was in generally good condition after 568 days. A chlorinated rubber-alkyd was in fairly good condition. An oleoresinous paint began to deteriorate slowly after about 6 months. Alkyd and epoxy stripes had early edge cracking and loss of paint and slurry seal. Significantly, analysis showed that these two paints had half the percent elongation of the other three paints. Author