666.1 Description. Furnish and place reflectorized pavement markings. 666.2 Materials. A. Type I Marking Materials. Furnish in accordance with DMS-8220, “Hot Applied Thermoplastic.” B. Type II Marking Materials. Furnish in accordance with DMS-8200, “Traffic Paint.” C. Glass Traffic Beads. Furnish drop-on glass beads conforming to DMS-8290, “Glass Traffic Beads.” 1. Type I Markings. Furnish Type III drop-on glass beads. Furnish Type II or double-drop of Type II and Type III drop-on glass beads where each type bead is applied separately in equal portions (by weight), only when specified in the plans. When furnishing a double-drop system, apply the Type III beads before applying the Type II beads. 2. Type II Markings. Furnish Type III drop-on glass beads or other beads specified on the plans. D. Labeling. Use clearly marked containers that indicate color, mass, material type, manufacturer, and batch number. 666.3 Equipment. A. General Requirements. Use equipment that: is maintained in satisfactory condition, meets or exceeds the requirements of the National Board of Fire Underwriters and the RRC for this application, uses an automatic bead dispenser attached to the pavement marking equipment, and can provide continuous mixing and agitation of the pavement marking material. Provide a hand-held thermometer capable of measuring the temperature of the marking material when applying Type I material. B. Material Placement Requirements. Use equipment that can place: at least 40,000 ft. of 4-in. solid or broken markings per day at the specified thickness; linear markings up to 8 in. wide in a single pass; markings other than solid or broken lines; a center-line and no-passing barrier-line configuration consisting of 1 broken line with 2 solid lines at the same time to the alignment, spacing, and thickness shown on the plans, for the 3- line application; white line from both sides; lines with clean edges, uniform cross section and thickness, and reasonable square ends; skip lines between 10 and 10-1/2 ft., an approximate stripe-to-gap ratio of 1 to 3, and a stripegap cycle between 39-1/2 ft. and 40-1/2 ft., automatically; beads uniformly and almost instantly on the marking as the marking is being applied; beads uniformly during the application of all lines (each line must have an equivalent bead yield rate and embedment); and double drop bead applications using both Type II and Type III beads from separate independent bead applicators, if double-drop bead application is used.
