paint at 6.13 square meters per liter 250 square
feet per gallon. Pre-stripe shall cure to a
tack-free state prior to paint application at the
specified rate.
The High Build Acrylic Coating (HBAC) can require
two or more consecutive coats to meet the specified
rate of application when using an airless spray gun.
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3.2.1.1
Reflective Markings
Apply paint evenly to the pavement area to be coated at a rate of 2.5 plus
or minus 0.10 square meter per liter 105 plus or minus 5 square feet per
gallon. [High Build Acrylic Coating (HBAC) at a rate of 1.3 square meters
per liter 50 square feet per gallon.]Apply glass spheres uniformly to the
wet paint [on airfield pavement at a rate of (1198)] [on road and street
pavement at a rate of (719)] plus or minus (60) g of glass spheres per liter
[on airfield pavement at a rate of (10)] [on road and street pavement at a
rate of (6)] plus or minus (0.5) pounds of glass spheres per gallon.
3.2.1.2
Nonreflective Markings
Apply paint evenly to the pavement surface to be coated at a rate of 2.5
plus or minus 0.10 square meter per liter 105 plus or minus 5 square feet
per gallon. [Apply High Build Acrylic Coating (HBAC) at a rate of 1.3
square meters per liter 50 square feet per gallon.]
3.2.1.3
Thermoplastic Compound
After surface preparation has been completed, prime the asphalt or concrete
pavement surface with spray equipment. Allow primer materials to "set-up"
prior to applying the thermoplastic composition. [Allow the asphalt
concrete primer to dry to a tack-free condition, usually occurring in less
than 10 minutes.] [Allow the Portland Cement concrete primer to dry in
accordance with the thermoplastic manufacturer recommendations. To shorten
the curing time of the epoxy resins, an infrared heating device may be used
on the concrete primer.] [Apply asphalt concrete primer to all asphalt
concrete pavements at a wet film thickness of 0.13 mm 0.005 inch, plus or
minus 0.03 mm 0.001 inch 6.5 to 10.0 square meters per liter 265 to 400
square feet per gallon.] [Apply portland cement concrete primer to all
concrete pavements (including concrete bridge decks) at a wet film
thickness of between 1.0 to 1.3 mm 0.04 to 0.05 inch 7.8 to 10.0 square
meters per liter 320 to 400 square feet per gallon.] After the primer has
"set-up", apply the thermoplastic at temperatures no lower than 191 degrees
C 375 degrees F nor higher than 218 degrees C 425 degrees F at the point of
deposition.
Immediately after installation of the marking, apply drop-on
reflective glass spheres mechanically at the rate of 0.24 kg per square
meter one pound per 20 square feet such that the spheres are held by and
imbedded in the surface of the molten material. Apply all extruded
thermoplastic markings at the specified width and at a thickness of not
less than 3 mm 0.125 inch nor more than 5 mm 0.190 inch.
Apply all
sprayed thermoplastic markings at the specified width and the thickness
designated in the contract plans. If the plans do not specify a thickness,
apply centerline markings at a wet thickness of 2.3 mm 0.090 inch, plus or
minus 0.13 mm 0.005 inch, and edgeline markings at a wet thickness of 1.5 mm
0.060 inch, plus or minus 0.13 mm 0.005 inch.
SECTION 02761N
Page 14
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