ASTM D7942-15 - 1.1.2015
 
1. Scope

1.1 This specification covers a reflectorized thermoplastic based pavement striping material of the class that is applied to the road surface in a molten state by screed/extrusion or ribbon extrusion means. Retroreflectivity of the pavement marking compound is achieved initially by surface application of retroreflective optics at the time of pavement marking application. Upon cooling to normal pavement temperature, the pavement marking material produces an adherent reflectorized stripe of specified thickness and width capable of resisting deformation by traffic. The pavement marking compound includes retroreflective optics (glass beads or composite optics, or both) that are incorporated into the material at the time of manufacture that provide retroreflective properties during the service life of the material.

1.1.1 This specification is limited to:

1.1.1.1 Longitudinal applications in non snow plow areas,

1.1.1.2 Standard (non-profile) pavement marking applications, and

1.1.1.3 Applications on smooth asphalt or concrete surfaces. Asphalt seal coat applications, which use large aggregate resulting in a very rough, open grade finish, are excluded from this specification.

1.1.2 This specification includes:

1.1.2.1 Compositional and physical property requirements of the thermoplastic pavement marking material,

1.1.2.2 Requirements for the optics that are used to reflectorize the thermoplastic pavement marking material after application,

1.1.2.3 Field performance requirements for the installed thermoplastic pavement markings, and

1.1.2.4 Material application requirements.

1.2 The values stated in inch-pounds units are to be regarded as the standard except where noted in the document. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.

1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

 
2. Referenced Documents

AASHTO T250

Standard Method of Test for Thermoplastic Traffic Line Material

D36-06

Standard Test Method for Softening Point of Bitumen (Ring-and-Ball Apparatus)

D92-24

Standard Test Method for Flash and Fire Points by Cleveland Open Cup Tester

D4960-25

Standard Test Method for Evaluation of Color for Thermoplastic Pavement Marking Materials

D6628-23

Standard Specification for Color of Retroreflective Pavement Marking Materials

G155-25

Standard Practice for Operating Xenon Arc Lamp Apparatus for Exposure of Materials

E1710-18(2025)

Standard Test Method for Measurement of Retroreflective Pavement Marking Materials with CEN-Prescribed Geometry Using a Portable Retroreflectometer

D7307-21

Standard Practice for Sampling of Thermoplastic Pavement Marking Materials

D7585

Practice for Evaluating Retroreflective Pavement Markings Using Portable Hand-Operated Instruments

D7308-17(2022)

Standard Practice for Sample Preparation of Thermoplastic Pavement Marking Materials

D7735-17(2022)

Standard Test Method for Type A Durometer Hardness Testing of Thermoplastic Pavement Marking at Elevated Temperatures

E313-20(2025)

Standard Practice for Calculating Yellowness and Whiteness Indices from Instrumentally Measured Color Coordinates

AASHTO M247

Standard Specification for Glass Beads Used in Traffic Paints