642Traffic Paint

642.01 Description. This work consists of furnishing and applying fast dry water -based traffic

paint or fast dry water-based traffic paint for cold weather applications according to Item 641, 740.01, 740.02, 740.09, and the additional requirements specified below.

642.02 Materials. Furnish materials conforming to:

Traffic Paint ..................................... 740.02 Glass Beads, Type A ........................ 740.09 The Engineer may obtain random samples from the application equipment in accordance with Supplement 1089 . Furnish the manufacturer’s identification information for the sampled liquid materials. The Department will test the quality assurance sample for conformance to the manufacturer’s production ranges. Samples not meeting the manufacturer’s production range s will require the Contractor to re-apply, at his expense, any markings using that sample. All other untested batches will become not approved and will either require testing or re-application. Do not apply paints that have exceeded the manufacturer’s shelf life. Do not use glass beads that are wet.

642.03 Equipment. Use equipment capable of applying the traffic paint as recommended by the

manufacturer and applying glass beads at the time of line placement. Furnish a calibrated measuring device acceptable to the Engineer to measure the traffic paint in the striper tanks. Equip all striping equipment for center line, lane line and edge line markings with a computerized Data Logging System (DLS) conforming to 641.04 when the length of marking exceeds 0.5 miles (0.8 km) of continuous line equivalent. Furnish written documentation to the Engineer for the equipment’s operational capabilities from the equipment manufacturer.

642.04 Application. Apply pavement markings only when the surface is clean and dry in

accordance with the paint manufacturer’s written application instructions. If application is required when air and pavement temperatures are between 35 °F (2 °C) and 50 °F (10 °C) obtain approval from the Engineer and apply only pre-qualified Type 1A cold weather traffic paint materials. Furnish the Engineer documentation the material being delivered is within the manufacturer’s recommended shelf life from the date of manufacture. Apply traffic paint according to the manufacturer’s recommendations and protect line from tracking. Keep the paint thoroughly mixed during application. Apply 20 mil (0.51 mm) thick traffic paint Type 1 at the following rates: 20 Mil Thickness Line Width (inch) 4 6 8 12 24 Gallon per Mile of Line Solid Line 22 33 44 66 132 Broken Line 5.5 8.25 11 16.5 33 Dotted Line 5.5 8.25 11 16.5 33 Areas, Symbols, Words 1.25 gallon per 100 square feet 0.51 mm Thickness Line Width (mm) 100 150 200 300 600 Liter per Kilometer of Line Solid Line 50 75 100 150 300 Broken Line 12.5 19 25 38 75 Dotted Line 12.5 19 25 38 75 Areas, Symbols, Words 0.51 L/m² Apply 15 mil (0.38 mm) thick traffic paint Type 1A at the following rates: 15 Mil Thickness Line Width (inch) 4 6 8 12 24 Gallon per Mile of Line Solid Line 16 24 32 48 96 Broken Line 4 6 8 12 24 Dotted Line 4 6 8 12 24 Areas, Symbols, Words 0.94 gallon per 100 square feet 0.38 mm Thickness Line Width (mm) 100 150 200 300 600 Liter per Kilometer of Line Solid Line 37 56 74 111 222 Broken Line 9.3 14 18.6 28 56 Dotted Line 9.3 14 18.6 28 56 Areas, Symbols, Words 0.38 L/m² Do not dilute the paint. However, the Contractor may add spent traffic paint solvents, generated during performance of this work, to virgin traffic paint. If adding spent solvents, add them in a maximum ratio of 1:50 of spent solvents to virgin paint. Ensure that the maximum concentration of spent solvents in the striping equipment tanks is maximum 2 percent. Add spent solvents during the loading of the striping equipment. Apply glass beads to the wet paint so that the beads are embedded and retained in the paint and provide uniform retroreflectivity in the paint surface. Apply glass beads at a minimum rate of 10 pounds per 100 square feet (4.9 kg per 10 m2) for Type 1 traffic paint. Apply glass beads at a minimum rate of 8.0 pounds per 100 square feet (3.9 kg per 10 m2) for Type 1A traffic paint. Ensure temperature of the paint at the discharge point is within the range recommended by paint manufacturer. Replace unsatisfactory markings according to 641.11. Furnish the Engineer daily DLS reports according to 641.04. Perform traffic control operations for all 642 pavement markings according to 614.12 and MT- 99.20M, but provide for center line, edge line, lane line and channelizing line traffic control equipment according to MT-99.20M equipment requirements for center line, longer than 2 minute dry. Payment for this work shall be included in the 642 price per mile for Center Line, Edge Line and Lane Line and the 642 price per foot for channelizing Line.

642.05 Basis of Payment. The Department will pay for accepted quantities at the contract prices,

or prices adjusted according to 641.11, measured according to 641.12, with the provisions specified in 641.13, and as follows: Item Unit Description 642 Mile (Kilometer) Edge Line, ___ inch (___ mm), Type ___ 642 Mile (Kilometer) Lane Line, ___ inch (___ mm), Type ___ 642 Mile (Kilometer) Center Line, Type ___ 642 Foot (Meter) Channelizing Line, ___ inch (___ mm), Type ___ 642 Foot (Meter) Stop Line, Type ___ 642 Foot (Meter) Yield Line, Type___ 642 Foot (Meter) Crosswalk Line, Type ___ 642 Foot (Meter) Transverse/Diagonal Line, Type ___ 642 Foot (Meter) Curb Marking, Type ___ 642 Square Foot Island Marking, Type ___ (Square Meter) 642 Each Handicap Symbol Marking, Type ___ 642 Each Railroad Symbol Marking, Type ___ 642 Each School Symbol Marking, ___ inch (___ mm), Type ___ 642 Each Bicycle Lane Symbol Marking, Type___ 642 Each Shared Lane Marking, Type____ 642 Foot (Meter) Parking Lot Stall Marking, Type ___ 642 Each Lane Arrow, Type ___ 642 Each Two Way Left Turn Arrow 642 Each Word on Pavement, ___ inch (___ mm), Type ___ 642 Foot (Meter) Dotted Line, ___ inch (___mm), Type ___ 642 Foot or Removal of Pavement Marking Square Foot (Meter or Square Meter), or Each 642 Lump Sum Two-Way Radio Equipment

Traffic Paint in other states

• Nevada 729 · Traffic Paint