What kind of environment is required for hot melt road marking paint construction

Although the drying rate of hot melt line spraying is relatively fast, we should consider one point. During the construction period, there are many relevant regulations for hot melt coatings. It is necessary to manually clean the old line, clean the ground, melt the hot melt road sign coating at high temperature, and the hot melt road sign adhesive (dry for 14 minutes), followed by using a laser cutting and engraving machine to scratch and mark. The key to road traffic signs is to be applied on the ground and withstand the impact and friction of sunlight, rain, wind, snow, freezing, and vehicles. Therefore, there are strict requirements for their characteristics. The drying time is short, the operation is simple, and the impact of urban traffic is reduced. Secondly, it stipulates that the reflective surface has strong ability, bright colors, and good visibility during the day and night. In addition, it should also have ground skid resistance and usage performance to ensure driving accidents and service life. The various types of industrial coatings and construction methods for road signs should be selected based on the effectiveness of hot-melt line coatings to consider the requirements of urban traffic signs.

1. The standard operating temperature is 23 ℃, and everyone should understand this. The drying time of the hot melt line paint is 23 ℃, which should not exceed 3 minutes. If the operating temperature exceeds this temperature, the drying time will increase.

2. High ground temperature: After the marking coating is completed, due to the high ground temperature, the temperature of asphalt roads in summer is higher, reaching over 60 degrees Celsius. When the temperature of the paint marking on the hot melt marking decreases to the same temperature as the sidewalk, refrigeration will not be carried out. The signs will not be boring. This situation can easily occur at noon. The double yellow line in the middle of the road surface is particularly severe. Due to the long sunshine in the middle of the road, the heat gradually dissipates.

3. The density of paint itself is a challenge. Using too many modifiers (such as leveling agents) to improve leveling and reduce the cost of industrial coatings can reduce the softening point of the type of coating, resulting in slow drying and loosening of the hot melt type coating.