At the present stage, hot melt line coating is common in China. Although the dry speed of hot melt line coating is faster, we need to take one thing into consideration. During the construction period, there are many relative provisions for hot melt coating. Need to manually remove the old line, to clean the road surface, need to melt hot melt marking paint at high temperature, hot melt road marking bottom glue (dry for 14 minutes), followed by the application of laser cutting plotter scratch marking. The key of natural highway traffic signs is to be applied on the ground, to be subjected to the sun, rain, snow, snow and freezing, and the collision and grinding of cars, so there are strict regulations on their characteristics. First, it provides a short dry time and easy operation to reduce the impact of traffic travel. Secondly, it requires strong reflective surface working ability, bright color, and thus excellent visibility in broad daylight and night. In addition, it should have ground anti-skid and service performance to ensure driving safety accidents and service life. A variety of architectural coating types and engineering construction methods for road signs should be selected according to the actual effect of hot melt line paint, so as to consider the standard of traffic travel signs.

Structure hot melt line paint marking, dry manic slow cause also has:

1, the standard working temperature is 23℃, everyone should understand this, hot melt line paint dry time is 23 degrees, not more than 3 minutes. If the working temperature is higher than this, the drying time will increase.

2. High ground temperature: after the marking coating is completed, because of the high ground temperature, the temperature of asphalt road is higher in summer, and the temperature reaches above 60 degrees. When the temperature of the paint marking line of the hot melt marking line is reduced to the same temperature as the crosswalk, the cooling will not be carried out. Signs will no longer be impatient. This kind of situation is very easy to produce in the middle of the day. The double yellow line in the middle of the ground is especially serious. Because the sunshine in the middle of the road is long, the heat is discharged slowly.

3, the relative density of paint itself is a difficult problem. The application of too many modifiers (such as leveling agent) and improve leveling to reduce the cost of building paint will also reduce the softening point of mark paint, and make the hot melt mark paint slow dry and loose.