Thermoplastic road marking paint is mainly utilized for the construction of road marking paint and heated melted road marking paint. The reflective glass beads contained in the paint are spread on the road surface during the construction, which endows the marking with excellent nighttime reflective efficacy and long-lasting service life. This method of construction has the advantages of fast drying, good durability, and good nighttime reflective effect, and is mainly used for freeway and interstate highway projects.
When applying thermoplastic marking, it is crucial to control and pay attention to the following key matters:
- Specialized equipment: The application of thermoplastic paint relies on specialized heating equipment to ensure that the paint reaches an ideal molten state.
- Treatment of old lines: If you need to recoat old road markings for the second time, be sure to remove the heavy old coating before applying new lines to ensure the clarity and adhesion of the markings.
- Equipment Inspection: Before construction, key equipment such as thermoplastic kettle, thermoplastic road marking machine should be inspected carefully and regularly to ensure that they are in the best working condition.
- Road surface preparation: before marking, the target road surface should be routinely inspected to ensure that the marking area is smooth and orderly. At the same time, pay close attention to the weather conditions to avoid construction in unfavorable weather such as rain, wind and humidity.
- Safety guarantee: make detailed safety construction program, set up eye-catching safety warning signs, to create a safe and worry-free working environment for the construction personnel.
- Temperature control: The temperature of thermoplastic marking construction should be maintained at about 180°C, the ideal range is 170℃-210°C. Prolonged heating above 200°C will lead to evaporation of paint components and affect the quality; while over 230°C may trigger the paint to burn and turn yellow, which will seriously damage its performance.
- Post-maintenance: After the construction is completed, the road thermoplastic delineation should be properly maintained to prevent environmental pollution and man-made damage, to ensure its long-term performance.
As an important part of the road infrastructure, thermoplastic marking bears multiple functions such as conveying traffic information, guiding vehicles, enhancing road capacity and reducing the risk of traffic accidents. Therefore, in the construction process, must pay attention to details, follow the norms, to ensure the construction quality and safe and reliable. At the same time, it should also continue to explore technological innovation and research and development, to promote the thermal fusion delineation technology to a higher level, to broaden its scope of application.