ASTM D7942-15 PDF Download

ASTM D7942-15 is a standard specification that covers a specific type of reflectorized thermoplastic based pavement striping material. This material is applied to the road surface in a molten state using methods such as screed/extrusion or ribbon extrusion. The specification applies to longitudinal applications in non-snow plow areas, standard pavement marking applications, and applications on smooth asphalt or concrete surfaces.

The standard establishes requirements for the chemical composition and physical properties of the thermoplastic pavement marking material. It also specifies requirements for the retroreflective optics used to reflectorize the material after application. These optics, such as glass beads or composite optics, are incorporated into the material during manufacturing to provide retroreflective properties throughout the lifespan of the marking.

In addition, the standard includes field performance requirements for the installed thermoplastic pavement markings. This ensures that the markings can resist deformation caused by traffic and maintain their reflectivity over time. Lastly, the standard outlines material application requirements for proper installation of the thermoplastic pavement marking material.

It is important to note that ASTM D7942-15 does not cover asphalt seal coat applications, which use large aggregate and result in a rough, open grade finish. The standard primarily focuses on the specification and performance of thermoplastic pavement markings used in non-snow plow areas.