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Hot melt marking paint

2018-11-16

Hot melt marking paint

Road marking paint have hot melt type and cold type

For cold type ,there is MMA raw materials have 2 kinds of compentent A and B combine to use .

For hot melt type ,there need titanium dioxide and C5 resin and glass bead etc to use.

Road marking paint is a common marking for asphalt pavement and cement pavement. It is based on thermoplastic acrylic resin and is composed of pigments, fillers, additives and solvents.

Hot melt marking paint, also called Thermoplastic road 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), after which it is sprayed on the road surface. The coating then becomes a line after cooling. This paint is thick coating, wear-resisting, bright and reflective.

In recent years, practical applications have proved that the marking lines lack certain 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. In order to increase the antiskid performance of the line, thermoplastic paint has added reflective glass beads. 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 great for car parks , factory walkways and many other areas. It's fast drying and can be driven over after just a few minutes.Thermoplastic marking paint is mainly composed by synthetic resin, glass beads, pigments, packing materials, additives, etc.

1. Synthetic resin has thermoplasticity, make the hot melt coating fast dry and strong adhesive to the road surface.Synthetic resin include derivative modified rosin resin and ,Petroleum resin;Polyester resin

2. Additives in the paint can increase the plastic 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 pigments are mainly rutile titanium dioxide, zinc oxide, and lithopone, while yellow pigment is mainly heat-resistant yellow lead.

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 beads are added in order to improve the identification of lines at night, to improve the brightness and durability of the marking. Glass bead is colorless and transparent ball, has function of light refraction, focusing and directional reflection. Glass bead mixed in the coating or dispensed throughout the coating surface can reflect car light back to the driver's eyes, thus greatly improving the marking visibility.

Road marking has many similar express:

1.Hot-melt road marking paint

2.hot-melt sign paint

3.hot-melt road oscillating paint

4.road marking paint ,

5. Line marking

6.Zebra crossing,

7.Road surface marking,

8.Pedestrian crossing,

9.Road marking machine

10.priming paint,bottom paint


There are different kinds of making paint ,different ender use are used in different site

Thermoplastic Marking Paint
Waterbased Marking Paint
Solvent Based Marking Paint
Two-Component Road Marking Paint
Market analysis by applications/end users
Roads & Streets
Parking Lot
Airport
Others

For Requirements for thermoplastic resins in road marking paint 
The resins of thermoplastic reflective road marking material composition proportion is about 15%-20% 
In thermoplastic coating the main composition is thermoplastic resin, its characteristic is to have adhesion, quick dry,good fluidity ,this is just what road mark line coating needs.The synthetic resin(petroluem C5 resin or rosin resin)  can combine coloring pigment, body pigment, glass bead, and so on, bonding and melting so that the paint has appropriate viscosity, after cooling, self-drying film. 

Softening point: 85 ℃ to 120 ℃.when the Softening point is too low, the marking line is easy to be soft and forms the wheel track and mark pollution during hot summer.If the softening point is too high, the melting temperature of the coating in the construction will be too high, not only waste energy, but also vulnerable to brittle and peeling in the cold winter .

Color: light color, transparent.normally the gardner color is 3 -5 ,The color of resin directly affects the quality and cost of coating.

Heat resistance 2hour between 180 ℃ - 230 ℃.If the heat resistance of the resin is weak, it will be easy to decompose in the process of heating, making the paint deteriorated.

Weather resistance: no obvious yellowing or embrittlement was observed in the open air.Poor weather resistance, so that the label in the short - term yellow, crack, and so on.

Abrasion resistance and adhesion: abrasion resistance and adhesion are poor, so that the bond between the marking line and road surface and glass beads is not strong, resulting in flaking of the marking line and road surface, glass beads fall off, and the service life of the marking line is shortened.


for cold area ,like north of Europe,we normally recommend the R-105 to them because the rosin has higher tenacity .

Hydrocarbon Resin are special resins for holt melt road marking paints,which can enhance the tenacity.rigidity and adhesive force of dope and form smooth paint surface.

also ensure the stable state of the resin in the four seasons by adding anxiliary agent.and have a better mixing with rosin.

In the mixing of top-grade paint.it can formsuch features as water-proof.anti-ultraviolet radiation.anti-chemicals.and improve the brightness and dryness of the surface.


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