The acrylic binder Fastrack™ HD-21A from Rohm and Haas’s Paint and Coatings Materials business meets new Federal Specification TT-P-1952E for waterborne traffic paint with increased durability.
The acrylic binder Fastrack™ HD-21A from Rohm and Haas’s Paint and Coatings Materials business meets new Federal Specification TT-P-1952E for waterborne traffic paint with increased durability. With growing emphasis among state DOTs on durability and wet night visibility, the new specification will assist states to achieve their goal of improved highway safety.
According to the National Highway Traffic Safety Administration (NHTSA), unlighted rural roads are among the most dangerous in the nation. Many years of research have demonstrated improved and more visible centerlines and edge line markings help reduce accidents and fatalities. While there are several commonly used materials for putting those white and yellow lines on roads, waterborne traffic-marking paints have gained increasing respect and support over solventborne coatings among industrial and government purchasers for their environmental and health benefits.
The new binder is a 100% crosslinking acrylic that is being used currently by traffic paint manufacturers to produce high-build, durable water-based markings. It reportedly has excellent glass bead retention, excellent adhesion to concrete and asphalt highways, and provides exceptional durability. Traffic paints based on Fastrack HD-21A binder are currently being used at Cape Canaveral on the landing site for the space shuttle, on high-speed racetracks, on airport runways, on federal and state highways, and on bridges, and tunnels.
Federal Specification TT-P-1952E, supersedes TT-P-1952D, and includes requirements for a Type III material, specifically 100% crosslinking acrylic as evidenced by infrared peaks at wavelengths 1568, 1624, and 1672 cm-1 with intensities equal to those produced by an acrylic resin known to be 100% crosslinking. The specification also suggests the use of this type of paint at higher film thicknesses for use with larger glass beads which can impart a high level of wet night retroreflectivity to the paint.
For more information, visitwww.FastrackRoadMarkings.comorwww.rohmhaas.com.
MATERIALS: Rohm and Haas Binder Meets Waterborne Traffic Paint Specification - Posted 11/7/07
November 7, 2007