Analysis of Construction Methods for Hot Melt Road Coatings!

Hot melt coating is a type of coating applied to roads for marking road markings. Road markings are a type of safety sign and a silent “language” in highway traffic.

Hot melt coating

There are three types of road marking coatings used in China: hot-melt, water-based, and room temperature solvent based. The traffic safety management department uses road markings to strengthen traffic safety management, reduce accidents, and beautify urban roads, while eye-catching road markings depend on high-performance hot-melt coatings. Hot melt coating is mainly used on highways and expressways of grade 2 and above. The thickness of the marking coating made by this coating is (1.0-2.5) mm, and reflective glass beads are mixed in the coating. During the marking construction, reflective glass beads are sprinkled on the surface.

Hot melt coating is a solid powder at room temperature. During construction, the coating is put into a melting kettle, and the temperature inside the kettle is controlled between 180 ℃ and 210 ℃. While melting, it is stirred. After melting into a molten flow state, it is placed into the insulation melting hopper of the marking truck.

The hot melt coating is then introduced back into the marking bucket and insulated to keep the material in a molten state. Before marking the line, a pre marking machine is used to mark the position, and a primer machine is applied to the designated coating position according to the design drawing. After the coating agent is completely dry, the marking paint can be applied. When starting to draw lines, the marking bucket should be placed on the road surface. Due to the certain gap between the marking bucket and the ground, a neat marking line should be scraped and wiped out by the automatic flow when the marking car is traveling. The glass bead spreader can automatically and evenly spread a layer of reflective glass beads on the marking line.

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