Thermoplastic road marking paint, also known as hot melt marking paint, is a widely used material for creating durable, high-visibility road markings. Below is a concise overview based on available information:

Composition

Synthetic Resin: Provides thermoplasticity, enabling fast drying and strong adhesion to road surfaces. Non-polymeric resins, like colophony, are also used.
Glass Beads: Added for retro-reflectivity, improving visibility at night by reflecting vehicle headlights. Bead sizes typically range from 0.1-1.4 mm.
Pigments: Common colors are white (using titanium dioxide for UV resistance) and yellow (organic pigments like Pigment Yellow 65, 74, or 83). Other colors are available for specific applications.
Fillers: Fine fillers (e.g., calcium carbonate) and coarse fillers (e.g., sand) enhance mechanical strength, wear resistance, and surface texture.
Additives: Improve plasticity, resistance to subsidence, pollution, and color fading. Anti-skid aggregates can be added for better traction.

Application Process

Heating: The powder paint is heated in a hot melt kettle to ~200°C (392°F) to liquefy it.
Application: Applied via spray, extrusion, or screed using specialized road marking machines. Thickness ranges from 90-120 mils depending on specifications.
Cooling: Sets within minutes, forming a thick, durable polymer layer. Glass beads are often added during application to enhance reflectivity and skid resistance.
Surface Preparation: The road surface must be clean, dry, and free of grease or debris. A primer is required for old tarmac, block paving, or concrete, but not for new tarmac

Advantages of Hot Melt Thermoplastic Road Marking Paint:

Exceptional Durability: Lasts 3–5 years or longer, resisting wear from heavy traffic, UV rays, and harsh weather.
High Visibility: Retroreflective beads ensure clear visibility in low-light or adverse conditions, improving road safety.
Cost-Effective: Long lifespan reduces the need for frequent reapplication, lowering maintenance costs.
Strong Adhesion: Bonds firmly to pavement, minimizing peeling or fading.
Fast Application: Quick-drying properties reduce traffic disruption during application.
Environmentally Friendly: Many formulations are solvent-free, reducing VOC emissions.
Customizable: Supports complex designs like arrows, symbols, or textured markings for enhanced functionality.
Low Maintenance: Resists abrasion, oil, and chemicals, requiring minimal upkeep.
Hot melt thermoplastic paint is ideal for high-traffic roads, highways, and urban areas due to its longevity, safety features, and efficiency.

Strong Wear Resistance Reflective Thermoplastic Road Marking Paint for Road Line Marking

Technical Specification

Density(g/cm3)	1.8-2.3
Softening point (℃)	90-125
Compressive Strength(MPa)	≥12
Glass bead content(%)	0-30%
Liquidity	35±10
Packing	25kg/bag
Color	White/Yellow/Blue/Red/Green/Customized
Executive standard	JT/T280-2004/AASHTO/BS3262/Customized
Appearance	Powder
Construction temperature	180℃-220℃
Whiteness	70-85(Customized)
Inverse coefficient	50-550
Warranty	12 months
Storage Method	Avoid light and moisture
Packing Size	45×70×5CM