Thermoplastic Paint: Fast-Drying, Wear-Resistant Coating for Pavement Markings
Product Overview
Thermoplastic paint is a specialized coating composed primarily of thermoplastic resins, combined with pigments, fillers, and additives. Key thermoplastic resins include acrylics, polyvinyl chloride (PVC), and ethylene-vinyl acetate (EVA). Pigments provide color, fillers enhance properties like hardness and opacity, while additives improve flowability, drying speed, and adhesion.
Working Principle
Thermoplastic paint operates on the principle of thermoplasticity. When heated above its melting point, the paint softens and becomes fluid for easy application. As it cools, the thermoplastic components solidify, forming a durable, adherent coating. This reversible process allows for remelting and reprocessing when needed.
Key Features
- Quick Drying: Enables faster traffic flow with minimal road disruption
- Exceptional Durability: Withstands heavy traffic, weather conditions, and wear
- High Reflectivity: Excellent visibility in low-light and nighttime conditions
- Cost-Effective: Long-term durability reduces frequent reapplication needs
- Thermal Reapplication: Can be remelted and reapplied for easy repairs and maintenance
- Environmental Benefits: Formulations with reduced harmful chemicals
- Fast Application: Quick application process minimizes downtime
- Weather Resistance: Resists fading, cracking, and peeling from weather exposure
Common Applications
- Road Markings: Lane divisions, pedestrian crossings, and stop lines
- Highways: Edge lines, centerlines, and turn arrows
- Parking Lots: Parking spaces, directional arrows, and reserved spots
- Airport Runways: Taxiway markings and boundary indicators
Application Process
- Surface Preparation: Ensure road surface is clean, dry, and free of debris, oil, or loose material
- Heating the Paint: Heat to 180–200°C (356–392°F) in preheater/melter with regular stirring for uniform consistency
- Application: Apply using road marking machine or specialized manual tools, often with simultaneous glass bead application for reflectivity
- Thickness: Typically applied in 1.5–2 mm thick layers
- Curing: Paint solidifies rapidly upon cooling, allowing quick road reopening
Maintenance & Care
Regularly inspect for wear and tear, particularly in high-traffic areas. Reapply markings as needed to maintain optimal visibility and effectiveness.
Technical Specifications
| Density (g/cm³) |
1.8-2.3 |
| Softening Point (°C) |
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°C-220°C |
| Whiteness |
70-85 (Customized) |
| Inverse Coefficient |
50-550 |
| Warranty |
12 months |
| Storage Method |
Avoid light and moisture |
| Packing Size |
45*70*5CM |