PAVEMENT MARKING – WATERBORNE PAINT
Part 1 — General
1.1 Section Includes
A.Acrylic waterborne pavement marking paint applied as non-temporary: pavement striping, contrast lines, and other related markings.
B.Requirements for Glass spheres or beads.
C.Application of pavement markings.
D.Removal of pavement markings.
1.2 RELATED SECTIONS Not Used
1.3 References
A.AASHTO M 247: Glass Beads Used in Traffic Paints
B.AASHTO MP 24: Waterborne White and Yellow Traffic Paints
C.ASTM D 562: Consistency of Paints Measuring Krebs Unit (KU) Viscosity Using a Stormer-Type Viscometer
D.ASTM D 1155: Roundness of Glass Spheres
E.ASTM D 1475: Density of Liquid Coatings, Inks, and Related Products
F.ASTM D 1644: Nonvolatile Content of Varnishes
G.ASTM D 3168: Qualitative Identification of Polymers in Emulsion Paints
H.ASTM D 2805: Hiding Power of Paints by Reflectometry
I.ASTM D 3723: Pigment Content of Water-Emulsion Paints by Low- Temperature Ashing
J.ASTM D 3960: Determining Volatile Organic Compound (VOC) Content of Paints and Related Coatings Pavement Marking – Waterborne Paint
K.ASTM D 5381: X-Ray Fluorescence (XRF) Spectroscopy of Pigments and Extenders
L.ASTM E 1347: Color and Color-Difference Measurement by Tristimulus (Filter) Colorimetry
M.ASTM E 384: Microindentation Hardness of Materials
N.Environmental Protection Agency (EPA) Testing Methods
O.Federal Specification
P.Federal Standards
Q.Manual on Uniform Traffic Control Devices (MUTCD)
R.UDOT Materials Manual of Instruction
S.UDOT Minimum Sampling and Testing Requirements
T.UDOT Quality Management Plans
1.4 Definitions
A.Pavement Markings – Are both Pavement Messages and Pavement Striping.
1.Pavement Striping – Lines placed parallel and adjacent to the flow of traffic such as lane lines, center lines, edge lines, channelizing lines, and others.
2.Pavement Messages – Markings generally placed perpendicular to and across the flow of traffic such as word, symbol, and arrow markings; stop, yield, and crosswalk lines; speed measurement markings; parking space markings; markings on shoulder such as chevron markings and others.
B.Long-term stationary – work that occupies a location more than 3 days.
1.5 Submittals
A.Manufacturer’s Certificate of Compliance and installation instructions for paint and glass spheres for review.
B.Paint Samples.
1.Sample according to UDOT Materials Manual of Instruction 932.
2.Refer to this Section, paragraph 1.6 B. Pavement Marking – Waterborne Paint
1.6 Acceptance
A.Provide fixtures such as ball valves, gate valves, or others on paint truck for the purposes of obtaining field samples
B.The Department will:
1.Allow pavement marking paint from qualified manufacturer supplied samples.
2.Sample from the applicator’s yard, at the Department’s discretion for manufacturer quality assurance.
3.Accept samples of paint from the application site for Applicator quality assurance (refer to UDOT Minimum Sampling and Testing Requirements 02765).
C.Stop all agitation before sample is drawn.
D.The Engineer will:
1.Verify quantities applied by either of the following methods:
a.Measuring both paint and bead tanks before and after application.
b.Witnessing the meter readings before and after application. 1) A printout of meter readings instead of witnessing may be accepted at the Engineer’s discretion.
E.Repaint pavement markings failing to meet bead application rates, and dimensional requirements.
F.Price Reductions
1.Price reductions for pavement markings installed below the specified wet mil thickness are outlined in Table 1. Table 1 Price Reduction for Wet Mil Thickness Pay Factor Less than 2 percent below the specified wet mil thickness 1.00 Less than10 percent below the Specified wet mil thickness 0.75 Less than15 percent below the Specified wet mil thickness 0.50 15 percent or more below the Specified wet mil thickness 0.00 * * Repaint pavement markings at the rates specified in 3.2 at no cost to the Department. Do not remove earlier application. Pavement Marking – Waterborne Paint
Part 2 — Products
2.1 Paint
A.Meet the requirements for Acrylic Water Based Paint specified in Table 2. Table 2 Paint Requirements Property White Yellow Black Test Pigment – Percent by
62.0 62.0 62.0 Astm D 3723
weight, minimum Total Solids – Percent by
77.0 77.0 77.0 Astm D 1644
weight, minimum Nonvolatile vehicle – ASTM D 3723 Percent by weight 43.0 43.0 43.0 ASTM D 1644 vehicle, minimum* Viscosity, KU @ 77 80 – 95 80 – 95 80 – 95 ASTM D 562 degrees F Density, lb/gal, minimum 14.0 14.0 14.0 ASTM D 1475 Volatile Organic Content 100 100 100 ASTM D 3960 (VOC) – g/L, maximum Titanium Dioxide Content,
1.0 min 0.2 max N/A ASTM D 5381
lb/gal Federal Standard Color Definition 37875 33538 N/A 595B Directional Reflectance
90.0 50.0 N/A Astm E 1347
Minimum Dry Opacity – Minimum
0.95 0.95 N/A Astm D 2805
(5 mils wet) Lead (Pb) max % by
0.06 0.06 0.06 Astm D 5381
weight of the dry film EPA SW-846 Test Mercury (Hg) max mg/l 0.020 0.020 0.020 Method 1311 EPA SW-846 Test Chromium (Cr) max mg/l 0.60 0.60 0.60 Method 1311
B.No-Pick-Up Time
1.Paint may not smear or track three minutes after application to the roadway using standard application equipment, at the mil thickness required, and with an ambient shaded temperature of at least 50 degrees F. Refer to AASHTO MP 24 No-track time (field). Pavement Marking – Waterborne Paint
C.Binder – Qualitatively matches 100 percent acrylic cross-linking polymer, as determined by infrared analysis. Refer to ASTM D 3168.
2.2 Glass Spheres (Beads) Used In Pavement Marking Paint
A.Heavy metal concentration: Beads can contain no more than the amounts listed for the following materials as determined by testing performed according to EPA test methods 3052 and 6010C.
1.Other suitable x-ray fluorescence spectrometry analysis methods may be used to screen samples of glass spheres for arsenic, antimony and lead content. Table 3 Heavy Metal Materials Material Level (ppm, total) Arsenic 200 Antimony 200 Lead 200
B.Pavement markings – Refer to AASHTO M 247, Specific Properties, with the following exceptions:
1.Gradation: Table 4 Gradation Sieve Size Accumulated Percent Passing No. 18 65 – 80 No. 30 30 – 50 No. 50 0–5
2.Coating – Dual coating for optimum adhesion and embedment.
3.Roundness – 80 percent true spheres below the number 30 sieve. Refer to ASTM D1155
4.Color/Clarity – Colorless/clear and free of carbon residue.
5.Refractive Index – Minimum 1.51 by oil immersion method.
6.Air Inclusions – Less than 5 percent by visual inspection.
7.Hardness – Beads exhibit an average Knoop hardness of 527 or greater measured according to ASTM E384 and using a minimum sample of 20 beads.
8.Chemical Resistance – Beads resistant to hydrochloric acid, water, calcium chloride, and sodium sulfide. TT-B Federal Specification 1325C sections 4.3.6 to 4.3.9. Pavement Marking – Waterborne Paint
Part 3 — Execution
3.1 Preparation
A.Line Control
1.Establish control points at 100 ft intervals on tangent and at 50 ft intervals on curves.
2.Maintain the line within 2 inches of the established control points and mark the roadway between control points as needed.
a.Remove paint that is not placed within tolerance of the established control points and replace. Refer to this Section, Article 3.4.
b.Maintain the line dimension within 10 percent of the width and length dimensions defined in Standard Drawings.
B.Remove dirt, loose aggregate, curing compounds, and other foreign material and follow manufacturer’s recommendations for surface preparation.
3.2 Application
A.Use Qualified Applicators as identified in UDOT Quality Management Plan 513, Pavement Marking Paint.
B.Apply Pavement marking paint at the following wet mil thickness:
1.20-25 wet mils for all longitudinal markings.
2.Approximate application rate for required mil thickness requirements:
a.4 inch Solid Line – From 190 to 240 ft/gal
b.4 inch Broken or dotted Line– From 760 to 960 ft/gal
c.6 inch Solid Line – From 130 to 160 ft/gal
d.6 inch Broken or dotted Line – From 510 to 640 ft/gal
e.8 inch Solid or dotted Line – From 95 to 120 ft/gal.
f.10 inch Solid Line – From 75 to 95 ft/gal. Calculation – Determine wet mil thickness 4 inch Solid Line – Wet mils = 4812.516 ft3/gal mil/ft X ft/gal 4 inch Broken or dotted Line – Wet mils = 19250.064 ft3/gal mil/ft X ft/gal 6 inch Solid Line – Wet mils = 3208.344 ft3/gal mil/ft X ft/gal Pavement Marking – Waterborne Paint 6 inch Broken or dotted Line – Wet mils = 12833.376 ft3/gal mil/ft X ft/gal 8 inch Solid Line – Wet mils = 2406.258 ft3/gal mil/ft X ft/gal 10 inch Solid or dotted Line – Wet mils = 1925.006 ft3/gal mil/ft X ft/gal Where: X = application rate. (Meter readings or dipping tanks).
C.Glass Sphere (Beads) – Apply at least 8 lb of beads per gal of paint, the full length and width of line and pavement markings.
1.Calibrate bead guns and measure bead distribution according to UDOT Materials Manual of Instruction 932, Procedure for Sampling and Accepting Pavement Marking Paint and Beads.
2.Do not apply glass beads to contrast lines (black paint).
D.Notify Engineer 24 hours prior to striping operations.
1.Apply two applications on new bituminous surfaces.
a.Place second application between 14 and 30 days after the first application.
E.Apply lines and pavement markings only when the air and pavement temperature are:
1.50 degrees F and rising.
3.3 Remove Pavement Markings
A.Use equipment specifically designed for removal of pavement marking material.
B.Use one of these removal methods
1.High pressure water spray
2.Sand blasting
3.Shot blasting
C.Do not use grinding without approval. Pavement Marking – Waterborne Paint
D.Do not eliminate or obscure existing striping, instead of removal, by covering with black paint or any other covering.
1.The Engineer may approve the use of black paint or other obscuring material prior to installation for work durations shorter than “long term stationary” as defined in this Section, Article 1.4 and in the Temporary Traffic Control section of the MUTCD. Pavement Marking – Waterborne Paint
Pavement Marking in other states
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Source: Utah Standard Specifications for Road and Bridge Construction, 2027 Edition. Pages 584–591 of 1,343. View official source ↗