What are the advantages and disadvantages of marking paint?

Advantages and disadvantages of various marking coatings

（1） Hot melt marking

Advantages: The selection of raw materials such as stone is simple, the manufacturing technology is simple, the construction is simple, the non stick tire time is short (3 minutes), and it can quickly open up traffic; Wide applicability; Thickness 0.5-2.5mm, relatively thick; The coefficient of retroreflection is usually; Low cost; High cost-effectiveness; The lifespan is usually around 24 months.

Disadvantages: greatly affected by temperature differences, with more cracks during use; The ability of bonding glass beads with marking lines is poor, and the glass beads are prone to falling off, resulting in a fast rate of reflection attenuation in the early stage; Liquefied petroleum gas heating is required during construction, which pollutes the environment and consumes resources; During maintenance construction, traffic must be closed off, resulting in low construction efficiency, high safety hazards, and significant impact on traffic flow; The removal of old markings is difficult and costly; During the usage period, glass beads and worn-out waste markings enter the soil on both sides of the road with rainwater, polluting the environment. Especially, glass beads can hardly degrade, and in the long run, the problem is more serious.

Construction equipment: mainly small hand push marking machines.

（2） Solvent based marking

Advantages: relatively low price, simple and convenient construction, eye-catching in the early stage, good visibility, usually mechanized spraying, high efficiency;

Defects: thin thickness, poor adhesion, poor wear resistance; Short lifespan, usually 3 months; Not reflective; The strong odor is not environmentally friendly, and VOC emissions are increasing. It is usually only used on urban roads and is not suitable for heavy traffic conditions such as highways, national and provincial roads.

Construction equipment: mainly mechanized spraying.

（3） Two-component marking

Advantages: High reflectivity coefficient; Low VOC emissions, environmentally friendly; Thickness 0.4-1.6mm is relatively thin; The coating has good adhesion to the road surface and good wear resistance; The coating has strong adhesion to glass beads, thus continuing to have good reflective function; Can be molded into various layout methods (flat paint film, raised layout, dot pattern, etc.); During maintenance and construction, the old lines can be directly covered up without removing them, and the interlayer bonding effect of the marking lines is good; Mechanized methods can be used, with high efficiency and good performance, and minimal impact on traffic flow; During the usage period, there will be less atmospheric particulate matter.

（4） Water based marking

Advantages: Compared to two-component marking, it can be understood as a single component, and the spraying construction is simple; The adhesion between the material and the road surface is strong, and the coefficient of retroreflection is high; During maintenance and construction, there is no need to remove old lines, and they can be directly coated. The bonding strength between the marking layers is strong; Good environmental friendliness, primarily replacing solvent based markings; Maintenance construction can achieve rapid and mechanized construction on vehicles; Moderate quotation; Less emissions during the usage period.

Our company is a professional manufacturer of road hot-melt coatings, road retroreflective measuring instruments, and road marking machines. If you are interested, please feel free to communicate with me via email at any time export@toproadtraffic.com