TT-P-1952 Paint, Traffic And Airfield Marking, WaterborneThis specification covers three types of low VOC volatile organic compounds, ready-mixed, one-component, 100% acrylic waterborne airfield and traffic marking paint. The paint is suitable for application on such traffic-bearing surfaces as Portland cement concrete, bituminous cement concrete, asphalt, tar, and previously painted areas of these surfaces. The paint may be used either alone or to bind reflective beads.

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TT-P-1952E

smooth and homogenous consistency, exempt of gel structures, persistent foam or air bubbles.

3.2.2 Appearance. When tested as specified in 4.3.3, the paint shall produce a film which is smooth, uniform, and free from grit, undispersed particles, craters, and pinholes.

3.2.3 Accelerated package stability. After storage as specified in 4.3.4, the sample shall conform to the requirements of 3.2.1 and 3.2.2. The sample shall show no change in consistency greater than 5 KU (Krebs Unit) from the value in Table 1.

3.2.4 Flexibility. When tested as specified in 4.3.6, the paint film shall not crack, chip or flake after the test panel is bent 180 degrees over a 13 mm (1/2 in) mandrel.

3.2.5 Water resistance. When tested as specified in 4.3.5, the paint film shall not soften, blister, wrinkle, lose adhesion, change color, or show other evidence of deterioration.

3.2.6 Freeze-thaw stability. When tested as specified in 4.3.8, the paint shall show no coagulation or flocculation, change in consistency greater than 10 KU from the value in Table 1, or a decrease in scrub resistance by more than 10 percent of the requirement in 3.2.13.

3.2.7 Color requirements.

3.2.7.1 Color match. For all colors except white and yellow, when tested as specified in 4.3.9.3, the paint shall match the specified Federal Standard 595 color number within a ∆ E or 6.0 CIELAB units.

3.2.7.2 Daylight directional reflectance. When tested as specified in 4.3.9.2, the white paint shall have the daylight directional reflectance specified in Table 1.

3.2.7.3 Yellow color match. The yellow traffic paint shall be an appropriate color match to Federal Standard 595 color number 33538 when tested in accordance with

4.3.9.4.

3.2.8 Heat-shear stability. When tested as specified in 4.3.13, the sample shall not show signs of gelling or other instability. The consistency shall be in compliance with Table 1.

3.2.9 Skinning. The paint shall not skin when tested as specified in 4.3.14.

3.2.10 Dry-through (early washout). For Type II only, the paint when tested as specified in 4.3.15 shall have a dry-through time less than 120 minutes.