Markers are manufactured per ASTM specifications. The bottom of these markers are configured to produce an excellent structural bond with the pavement, while their strong yet lightweight construction allows for easy installation.

• Plastic non-reflective pavement markers Types A and AY shall be, at the option of the Contractor, either polypropylene or acrylonitrile-butadiene-styrene (ABS) plastic type.
• Polypropylene non-reflective pavement markers shall consist of polyester resin binder, inert organic filler material and colorant pigments and shall conform to the provisions of the third paragraph in Section 85-1.04A, “Non-Reflective Pavement Markers (Ceramic),” except the requirement for adhesive bond strength in Test a shall be 3.4 MPa, minimum, and Tests b, c, g and I shall not apply.
• ABS non-reflective pavement markers shall consist of ABS plastic conforming to the requirements in ASTM Designation: D 4673, Designation ABS 1-2-2, and shall conform to the provisions of the third paragraph in Section 85-1.04A, except Tests a, b, c, g and I shall not apply. The bottom of ABS plastic pavement markers shall have areas of integrally formed protrusions projecting from the surface to increase the effective bonding surface area and produce a structural bond with the pavement.