Hot melt road marking paint is a type of thermoplastic road marking material that is commonly used for creating durable and visible road markings on highways, streets, and other surfaces. It is made by combining various resins, pigments, and fillers, and it becomes a molten liquid when heated to a specific temperature, allowing it to be applied to the road surface.

Key characteristics of hot melt road marking paint include:

1. Durability: The coating forms a strong, long-lasting bond with the road surface, making it resistant to wear and tear from traffic and weather conditions.
2. Quick Drying: Once applied, it solidifies rapidly, allowing traffic to resume shortly after application.
3. High Reflectivity: The paint contains glass beads that enhance the visibility of the road markings, especially at night or in low-light conditions.
4. Temperature Resistance: It remains stable under a wide range of temperatures and harsh weather conditions, ensuring effective performance in different climates.
5. Environmental Resistance: Hot melt paint is resistant to oil, grease, and chemicals, maintaining its integrity even in areas with high levels of traffic or industrial exposure.

This type of paint is favored for its excellent performance, ease of application, and safety features, making it a popular choice for road safety and traffic management.

Applications

- Road Markings: It is most commonly used for marking lanes, road boundaries, crosswalks, and other traffic control signs on roads, highways, and parking lots.

- Industrial Flooring: In industrial settings, thermoplastic paint can be used to mark safety zones, walkways, and storage areas on factory floors due to its durability and resistance to heavy machinery and industrial chemicals.

- Sports Facilities: For marking sports fields, such as tennis courts, basketball courts, and running tracks, where a durable and visible marking system is required.

Application Process

- Pre-treatment: The surface to be painted, such as a road surface, must be clean, dry, and free of dust, oil, and loose particles. This is usually achieved through methods like sandblasting or power washing.

- Heating: The thermoplastic paint is heated in a special kettle or melter to a temperature typically between 180°C and 220°C (356°F - 428°F), depending on the specific formulation. At this temperature, the paint becomes a fluid, viscous liquid that can be easily applied.

- Application: It is then applied using equipment such as a screed applicator or a spray gun. For road markings, a screed is commonly used to spread the molten paint evenly at a specific thickness. Glass beads are often sprinkled onto the wet paint immediately after application to enhance retroreflectivity, making the markings more visible at night.

- Cooling and Solidification: Once applied, the paint cools rapidly due to the lower temperature of the substrate and the surrounding environment. As it cools, it solidifies into a hard, durable coating within a short period, usually within a few minutes.

Technical Specification