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

"This paint may be reflectorized by dropping glass beads conforming to TT-B-

1325 onto the wet paint. The surface to be coated shall be free from dirt, oil, grease, curing compounds, or other contaminants, and loose, peeling, or poorly bonded paint. The paint shall be applied to the surface at a wet film thickness of

0.33 mm (0.013 in), while air and surface temperatures are above 10°C (50°F)

and rising."

6. NOTES.

INFORMATION FOR GUIDANCE ONLY.  (This section contains information of a general or explanatory nature that is helpful, but is not mandatory.)

6.1  Intended use. (This paragraph is non-mandatory and shall not supersede specific use requirements in contract documents.) These paints are intended for use on concrete, bituminous, brick, or stone surfaces of airfields, highways, bridges, tunnels, streets, or parking lots when applied at a wet film thickness of 0.33 mm (0.013 in) by traffic-striping equipment designed for water-based paints. The white and yellow paint stripes should preferably be reflectorized for night visibility by adding glass beads conforming to TT-B-1325. A wet film thickness of 0.457-0.635 mm (0.018-0.025 in) is commonly specified when Type IV A beads are used and 0.381-0.457 mm (0.015-

0.018 in) is commonly specified when Type IV B beads are used. The black paint is intended for use as a border around markings on light-colored pavements and as an obliterating paint for painting out existing markings to permit remarking in a different manner.

Type I - For use under normal weather conditions, i.e., 50% relative humidity, moderate temperatures and slight breezes. Not for use at the greater thickness required for the larger diameter Type IV beads.

Type II - For use under adverse conditions, i.e., night striping, higher humidity (around 80%), low air movement and lower surface temperatures, down to 10°C (50°F). Not for use at the greater thickness required for the larger diameter Type IV beads.

Type III - For use under normal weather conditions where higher durability and greater adhesion to glass beads is desired.  Minimum application temperature should be 12.8°C (55°F) and rising.  Low temperature will result in greater dry time, especially when specifying increased thickness as required when using Type IV beads.

6.2  Ordering data. Purchasers should select the preferred options permitted herein, and include the following information in procurement documents:

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