Anti-Skid AASHTO M249 Hot Melt Marking Paint with Added Reflective
Glass Beads Powder Coating
Description
Thermoplastic road marking paint, also called hot melt marking
paint, is a kind of powder paint. When applied as road surface
markings, a hot melt kettle is used to heat it to 200 °C (392 °F)
to melt the powder, after which it is sprayed on the road surface.
After cooling, the paint forms a thick polymer layer, which is
wear-resistant, bright, and reflective. In recent years, practical
applications tests have proved that the marking lines lack surface
roughness and can easily cause wheel slip, resulting in a traffic
accident in snow and rainy weather. Therefore, some countries once
restricted the use of this paint or demand the use of anti-skid
particles. In order to increase the antiskid performance of the
line, thermoplastic paint has added reflective glass beads and
other coarse fillers. Thermoplastic can be used very effectively
for large anti-skid areas on roads and pedestrian walkways by
adding glass beads. It can be produced in any colour and is
suitable for car parks, factory walkways, and many other areas. It
hardens quickly and can be driven over after just a few minutes.
Tenichal Data:
| Gravity (g/m3) | 2.1g/㎥ |
| Color | Yellow, Orange, Red and etc. |
| Heating Temperature | 150℃-220℃ |
| Softening Point(℃) | 110℃ |
| Coating Appearance | No wrinkles, dots, blisters, cracks,fall-out&stick tyres |
| Drying Time(min) | Within 3 minutes |
| Chroma Performance | Reverse materials(white) |
| Compressive Strength(Mpa) | 26 |
| Abrasive Resistance(mg) | 42 |
| Alkali Resistance | Great (in saturated solution of calcium hydroxide for 24 hours |
| Glass Beads(%) | 19% |
| Fluidity(s) | 40s |
| Coating Resistance | Resis -10℃ for 4 hours |
| Package | 25kg/bag, by plastic woven bag. One 20’container can load Max 26
tons |
| Heat Resistance | Under 200℃-220℃ for hours |
| Material | C5 Petroleum Resin, CACO3, Wax, Glass Beads, EVA, PE and so on. |
| Application | Road marking, straight line, dotted line, curve, oriented
arrow,letter and etc. |
Components:
Thermoplastic marking paint consists of synthetic (polymeric or
non-polymeric) resin, glass beads, pigments, fillers (fine like
calcium carbonate and coarse like sand), packing materials,
additives, etc.
1. Synthetic resin has thermoplasticity, make the hot melt coating
fast-dry and strongly adhesive to the road surface. Non-polymeric
resins, based on colophony, are also widely used.
2. Additives in the paint can increase the plasticity of the
coating, and make it resistant to subsidence, pollution and color
fading.
3. Pigments: the common colors of road lines are yellow and white.
White pigment is titanium dioxide. Occasionally zinc oxide can be
used, but it is less effective due to low refractive index. For
yellow thermoplastics, organic pigments (like Pigment Yellow 65, 74
or 83) are mostly used; lead-containing pigments are obsolete and
banned in essentially all developed countries.[citation needed]
Thermoplastic road markings can also be formulated in other colors.
4. Packing materials, as filling added into the paint, ensure
mechanical strength, wear resistance, and color of paint coating.
The particle size will affect liquidity and precipitation, as well
as the surface processing.
5. Glass microspheres are added in order to improve the
identification of lines at night, to improve the brightness and
durability of the marking. Glass beads, usually 0.1-1.4 mm in
diameter, are colourless and transparent; they reflect light from
vehicle's headlights back toward the driver and foremost protect
the road marking from abrasion.
Matched Machines
A road marking machine is a machine specially used to mark
different traffic lines on road surface, and some can remark on old
lines directly. It can screed, extrude, or spray processed road
paint onto the road surface to form durable coating lines. A hot
melt kettle is used for continuously heating, melting, and stirring
thermoplastic marking paints, preparing molten paints for the
thermoplastic machine, especially for long-distance
road-line-marking work. The molten paint quality can affect the
line quality.
